Swiss meringue buttercream

Chocolate Stout Layer Cake with Coffee Irish Cream Buttercream and Irish Whiskey Ganache

March 12, 2019 By Ashley Leave a Comment

St. Patrick’s Day is just around the corner! What better dessert to follow your corned beef and cabbage than this chocolate stout layer cake with coffee Irish cream buttercream and Irish whiskey ganache? This cake highlights some of Ireland’s best alcohols – Guinness Stout, Jameson Whiskey and Bailey’s Irish Cream liqueur. The chocolate stout cake is out of this world delicious on it’s own, or with a multitude of fillings and butter creams. But, layering and topping the cake with Jameson Whiskey infused chocolate ganache and a coffee and Bailey’s Irish Cream infused Swiss meringue buttercream takes this chocolate stout layer cake to a whole other level of amazing.

I actually have this stout cake on my wedding cake menu. It is one of my most popular flavors for groom’s cakes and is a huge hit with both beer lovers and non-beer fans alike. It’s a rich and chocolaty cake with deep coffee notes and a roasted flavor from the stout beer.

When I chose recipes for my business, I chose cakes with a tight, fine grain crumb, moist on it’s own without the need of moistening syrups, and incredibly flavorful, as well as being functional and a good foundation for stacked and tiered cakes. This chocolate stout cake is not only amazing because it tastes phenomenal, but also because it’s crazy functional. Especially, for making into a towering layer cake beauty. It can easily be scaled to make larger and smaller cakes, and it can also be carved for sculpted cakes.

The chocolate stout layer cake can be made with any stout beer you like. I used Guinness Stout because it’s easy to find and I enjoy the flavor of it. A chocolate milk stout would be fabulous here. I also baked my cakes in two pans, then sliced (or torted) those cakes into two. You can also divide the batter into three tins and bake as three separate layers if you wish.

You can use bittersweet or semi-sweet chocolate for the ganache. The ganache is a standard 2:1 recipe, with two parts of chocolate to one part cream. This will allow you to use it as a drip consistency and as a spreadable frosting-like consistency between the layers. I like to add a little bit of corn syrup and butter to my ganache to allow it to have a bit more softer consistency when chilled. The butter and corn syrup allow it to be a bit creamier and gives it a bit more shine on the drip.

Avoid chocolate bark, low quality chocolate chips and candy melts for ganache. Use a higher quality chocolate here. The better quality the chocolate, the better the texture and the taste. I also add a little bit of Irish whiskey – I used Jameson – to my ganache for additional flavor. Allow the ganache to cool until it’s smooth and spreadable, like peanut butter.

I use Swiss meringue buttercream for this recipe as I love how well it holds the flavor of the coffee and the Irish Cream. Check out my post on Swiss meringue buttercream for the recipe and tutorial on how to make this silky and delicious buttercream. I flavored the Swiss meringue buttercream with cooled, prepared espresso (you can also use strong coffee) and Bailey’s Irish Cream. The coffee flavor complements the chocolate and the stout flavors from the cake. The Irish cream is the final touch, complementing the chocolate and the coffee so well. They are flavors that are meant to be. It’s so good! Definitely don’t leave out the Irish cream here.

I chose to keep the decoration on this cake pretty minimal. I was planning on doing a semi-naked drip but I actually loved how the Swiss meringue buttercream sort of had that two toned messy suede look, so I kept it. To get this look, I iced the cake completely and popped it in the fridge to chill. Once it chilled for 30 minutes or so, I pulled it out of the fridge, and filled in any holes or messy areas with buttercream. I used my cake scraper (or bench scraper) and smoothed the buttercream out completely, which blended both the chilled and room temperature buttercream and created that two tone look and some additional texture.

For the drip, I heated the remaining ganache just until it was the same consistency of what it was when I first made it. Then I poured it into a squeeze bottle to add the drips to the cake. You can also use a spoon to apply the drips instead, if you wish. I added the drips first then I filled in the top with the remaining ganache. Work quickly because the ganache wants to set up quickly on the chilled cake.

There you have it, chocolate stout layer cake with coffee Irish Cream buttercream and Irish whiskey ganache. After I was done shooting the photos for this cake, part of it went to weekend cake tastings and consultations, but the remainder of it was sent off with my husband to a business meeting where it was promptly polished off. They even sent me a video raving about the cake. It’s THAT good.

If you try this chocolate stout layer cake with coffee Irish cream buttercream and Irish whiskey ganache, let me know! Leave a comment in the comment area below and be sure to snap a photo and tag it #littlevintagebaking on Instagram. I love seeing your Little Vintage Baking creations!

Chocolate Stout Cake with Coffee Irish Cream Buttercream and Irish Whiskey Ganache

A moist and chocolaty stout cake filled and dripped with dark chocolate Irish whiskey ganache and filled with coffee Irish Cream Swiss meringue buttercream

Course Dessert

Prep Time 30 minutes

Cook Time 1 hour

Total Time 1 hour 30 minutes

Servings 24 1" x 2" x 5" servings

Ingredients

Chocolate Stout Layer Cake:

1 cup (226g) unsalted stick butter, softened
2 1/4 cups (504g) light brown sugar, packed
2 1/3 cup (315g) all purpose flour
1 cup (120g) high quality cocoa powder, Dutch processed, sifted to remove lumps
1 1/2 tsp baking powder
1 tsp fine sea salt
4 large eggs room temperature
1 bottle (12oz, 350ml) Guinness stout beer, or your favorite stout, room temperature
1/2 cup (120ml) buttermilk, room temperature
1/4 cup (60g) mayo, room temp
1 1/2 tsp baking soda
2 tsp apple cider vinegar

Irish Whiskey Ganache:

8 oz (227g) chopped bittersweet or semisweet chocolate
1/2 cup (116ml) heavy cream
1/2 tbsp light corn syrup
1 tbsp unsalted butter
2 tsp Irish whiskey, I used Jameson
Pinch fine sea salt

Coffee Irish Cream Swiss Meringue Buttercream:

1 batch prepared Swiss meringue buttercream, omitting the vanilla
1/3 cup (80ml) brewed Espresso, room temperature
2-3 tbsp Irish Cream, I used Bailey's
1/8 tsp fine sea salt

Instructions

Make the chocolate stout layer cake:

Preheat the oven to 350F. Butter the bottoms and sides of 2 - 8" x 2" round cake pans. Line the bottoms with parchment. Create a parchment collar to go around the sides of the pans.
In a medium bowl, combine the flour, sifted cocoa powder, baking powder and salt. Whisk to combine well.
In a measuring cup, combine the buttermilk and stout. Whisk to combine.
Place the softened butter and the brown sugar into the bowl of a stand mixer. Using the paddle attachment, cream the butter and the brown sugar on medium speed until it is very light in color and super fluffy, about 6-8 minutes.
Add the eggs one at a time, mixing just until combined. Scrape the bottom and sides of bowl with spatula after each addition.
Add one third of the flour mixture to the bowl and mix on low until just combined. Pour half of the beer mixture into the bowl and mix on low until just combined.
Remove the bowl from the mixer. Scrape the bowl to make sure the ingredients are incorporated. The mixture might look curdled at this point, but it will come back together.
Add an additional one third of the flour mixture and mix until just combined. Add the remaining beer mixture and mix just until combined.
Scrape the sides and bottom of the bowl to make sure the ingredients are incorporated.
Add the remaining flour mixture and mix until just combined. Remove the bowl from the mixer. Scrape the sides and bottom of the bowl to make sure there are not any pockets of butter or flour remaining.
Place the bowl back on the stand mixer. With the mixer speed on low add the mayo. Mix for 10 seconds.
Combine the baking soda and vinegar in a small bowl. Pour the mixture into the cake batter and mix on low for an additional 10 seconds.
Remove the bowl from the mixer. Portion the batter evenly into the prepared pans.
Bake the cakes on the center rack of the oven for 40-50 minutes, or until a toothpick inserted in the center comes out with a few crumbs. You will want to start watching for the cakes to be done, when the tops dome and start to crack a bit.
Remove the baked cakes from the oven. If they have domed at all, use a tea towel to gently press down the domes. Let the cakes cool in the pans for 10 minutes.
Run a butter knife around the edge of the pans, remove the parchment collar and turn the cakes out onto a wire rack. Cool to room temperature.
Wrap the cakes tightly with a couple layers of plastic wrap and place in the refrigerator to chill completely before assembling.
The cakes will keep tightly wrapped in plastic wrap and placed in a zip top bag in the refrigerator for up to three days. The cake layers can also be frozen, wrapped well in plastic wrap and placed in a zip top bag. I personally don't like to freeze longer than a week, but you can freeze these layers for up to three weeks. Defrost the layers in the refrigerator before using.

Make the Irish Whiskey Ganache:

Place the chopped chocolate and butter into a medium size bowl. Set aside.
Heat the heavy cream, salt and corn syrup in a small sauce pan over medium-low heat on the stove until the mixture begins to simmer.
Pour the hot cream over the chocolate. Let the mixture sit for a minute to allow the chocolate to melt. Gently whisk the chocolate and cream until smooth.
Add the Irish whiskey and whisk to combine.
Place the ganache into the refrigerator until it is a thicker, spreadable consistency, like peanut butter, about 30 minutes or so.

Make the Coffee Irish Cream Swiss Meringue Buttercream:

Add the salt, espresso and Irish cream to the prepared buttercream. Mix on low until incorporated completely and the buttercream is silky and smooth

Assemble the Layer Cake:

Work with chilled cake layers. Using a long serrated knife torte the layers, cutting them evenly in half. You will have four cake layers total. The tops of the cakes will be the center two layers of your cake.
Put one of the cake layers, cut side up onto an 8" cake board or directly onto a cake stand.
Spread a thin, even layer of the ganache on the cake layer with an offset spatula.
Spread about one cup of the buttercream on top of the ganache using an offset spatula to evenly distribute the buttercream. You're looking for the buttercream to be about 1/4 inch thick.
Place another cake layer on top, top up, and press down gently so that the layer is adhered to the buttercream. Repeat the previous two steps, applying the ganache and buttercream.
Place the third layer cake layer, top up, and press down gently so that the layer is adhered to the buttercream.
Add the final ganache layer. Add the final buttercream layer. Place the final cake layer (the bottom of one of the cakes) bottom side up on the buttercream, pressing gently to adhere.
Frost the cake with the remaining coffee Irish cream buttercream. Chill in the refrigerator for 30 minutes.
Microwave the remaining ganache in 3-5 second intervals, stirring after every interval until the ganache is loose and pourable but not hot.
Add the drips around the perimeter of the cake. Fill in the top of the cake with the ganache and smooth.
Slice into pieces and serve.
The completed cake will keep in the refrigerator for up to three days. Bring to room temperature before serving.

Recipe Notes

To adjust the recipe for different size pans: (Creates 2 - 2" layer cakes to be torted, or you can divide them into three pans)

Halve the recipe for 6" cakes

One and a half recipes for 10" cakes

Two and a half recipes for 12" cakes

Cake layers adapted from The Sweetapolita Bakebook

Swiss Meringue Buttercream

March 4, 2019 By Ashley Leave a Comment

When I discovered Swiss meringue buttercream several years ago, I was intimidated by it. I didn’t like the idea that I couldn’t just throw everything in a mixing bowl and start mixing as I had done with the buttercream I had been making at the time for my cakes. Swiss meringue buttercream requires a bit of extra time, costs a bit more and involves a process. But let me tell you, it is so worth it. Swiss meringue buttercream is luxuriously light and creamy. It’s silky, fluffy and smooth texture makes it a DREAM for filling and icing stacked cakes. It’s stable and holds its shaped when piped. It’s perfect for getting those sharp, precise edges on layer cakes and is a great base for covering with fondant.

You begin the process of making Swiss meringue buttercream by heating egg whites and granulated sugar in a bowl over a pot of simmering water. This process is to cook the egg whites and melt the sugar all while whisking continuously to avoid any scrambling. Once the egg white mixture reaches 160F, it is strained through a sieve into a stand mixer mixing bowl and using the whisk attachment, beaten until stiff peaks form and the bowl is room temperature to touch. At this point, softened butter is popped in piece by piece and then, and you leave it to mix on low for a bit. It’s important to mix on low as to not incorporate air. Incorporating air into your buttercream can cause and contribute to cake disasters, such as blow-outs, air bubbles and sinking.

This is the time in Swiss meringue buttercream making that most people think they’ve destroyed it and they pitch all of that glorious (albeit, ugly at this point) buttercream. It’s quite possible your buttercream will look curdled, or super deflated. It might even look separated. But it’s ok. Let it keep mixing. This can take up to 10 or 15 minutes. Keep mixing and it will come together into creamy, silky and smooth Swiss meringue buttercream. Mixing the buttercream on low for a while allows it to fully incorporate, and eliminates air pockets – which is super important if you’re making a fondant covered cake. It also helps creates that super silky, creamy texture.

Once the buttercream has come together and is fully incorporated, add the flavorings and a pinch of salt. Don’t skip the salt – it helps to define the flavors you add to your buttercream. Swiss meringue buttercream is a blank canvas suitable for many, many types of flavorings. Jams, curds, cookie butters, nut butters, extracts, chocolates, etc. It holds flavors incredibly well so don’t be afraid to experiment.

The mixture just after adding butter. The butter is incorporating, the mixture looks like it’s deflating and it looks like it’s curdling. Keep mixing!

Some common questions and concerns about Swiss meringue buttercream:

1. Swiss meringue buttercream is too buttery.

This is the most common concern, no doubt. In comparison to American style buttercream that is mostly sugar and the sugar taste is the forefront flavor, Swiss meringue buttercream will seem more buttery as butter is the star in this buttercream. I always suggest to meringue buttercream beginners to try a fruit or chocolate flavored buttercream first so you can really get a since of how delicious, adaptable and amazing this buttercream truly is. Additionally, if you’re making a vanilla Swiss meringue buttercream, don’t skimp on the vanilla in quality or quantity. I add both vanilla extract and vanilla bean paste to my buttercream. This buttercream is more of a luxury style buttercream meant to showcase high quality flavors and ingredients. It’s the perfect vehicle for intense and concentrated flavors.

*Pro tip: If you love the texture and taste of Swiss meringue buttercream but want it a bit sweeter, add 1/2 -3/4 cup of sifted confectioners sugar after the butter is fully mixed in.

2. Can I make Swiss meringue buttercream in advance?

Yes, definitely. You can keep your Swiss meringue buttercream at room temperature for up to two days. If you’ve let your buttercream sit for a couple days, it will seem kind of spongy if you try to use it as is. Place the buttercream back into the bowl of your stand mixer and mix on low for 5-10 minutes until smooth. You can also refrigerate and freeze the buttercream. Again, you will need to mix again on low speed to smooth out the texture. The buttercream must be room temperature before mixing otherwise, it will separate. I always make my Swiss meringue buttercream in advance and refrigerate it because I’m always making large quantities of it for wedding cakes.

*Pro tip: If you start mixing your buttercream and find that it is still too cold and is separating, you can help bring the separated mixture back together by using a kitchen torch to warm the buttercream. While the mixer is on, run the kitchen torch flame along the outside bottom, of the metal mixing bowl, back and forth, until the buttercream starts to come together. *Only try this technique if you’re using a metal mixing bowl.

Starting to form larger curds and looks like it’s starting to separate. But it won’t. Keep mixing!

3. Why aren’t my egg whites whipping into stiff peaks?

Your mixing bowl and utensils must be grease free otherwise the eggs won’t whip up properly. They’re temperamental like that. Wipe down your bowl and utensils with a clean cloth and lemon juice or vinegar to remove remaining fat residue. I also don’t recommend using carton eggs. Sometimes they work, sometimes they don’t. I also don’t find meringue made with carton whites to be as stable.

4. Why is my Swiss meringue rock hard after being refrigerated?

Keep in mind that Swiss meringue is made with mostly butter, so being that cold butter is hard in the fridge, you should expect your buttercream to harden similarly. This aspect of Swiss meringue buttercream though, is one of perks of using it for layer cakes. Cakes refrigerated with Swiss meringue buttercream are far more stable for transportation and for covering with fondant than a cake covered with an American style shortening based buttercream. Also, buttercream acts as an excellent insulator, keeping your cake moist while being refrigerated. Just bring your cake to room temperature before serving and it will be perfectly soft and delicious.

5. I’m adding loads of gel food color to color my buttercream but it’s still not the dark color I want.

Swiss meringue buttercream is oil (butter) based. Gel food color will not allow you to achieve the deep, or vibrant colors that can be easily achieved with shortening based or American style buttercream. To be achieve dark and vivid colors with Swiss meringue buttercream, you need food coloring that is suitable to chocolate, one that is oil based. I like to use Artisan Accents Chameleon Colors.

6. Swiss meringue buttercream costs more to make, takes longer to make and can be more difficult to make. Why would I want to make Swiss meringue buttercream over my go-to American buttercream that is inexpensive, fast, and easy?

Just like some people find Swiss meringue buttercream to be too buttery, some people find American style buttercream to be grainy, greasy or overly sweet. When it comes to taste and texture, it all comes down to personal preference. It’s also important to consider workability as well, especially if you want to make professional looking cakes.

The main reasons I find Swiss meringue buttercream to be worth trying and is my preference for my cakes, is for stability and versatility. If you make layer cakes or tiered cakes, it’s important to have a base buttercream that is stable for layering, stacking and transporting. Swiss meringue buttercream, as well as Italian buttercream, chills firm allowing for a smooth and stable foundation for fondant or rolled chocolate.

I also find that the support from using a meringue style buttercream, or ganache is important for supporting sugar flowers well in a cake. Buttercream that is more loose, doesn’t firm in the fridge (like a shortening based buttercream) just doesn’t have the stability of a meringue buttercream or ganache. Using Swiss meringue allows me to get sharp, clean edges on my cakes and stays firm while I am decorating, stacking, and transporting the cake.

The mixture has come back together from it’s curdled state and is starting to look creamy and silky, but there’s lots of air pockets still. Keep mixing on low speed!

Some tips for successful Swiss meringue buttercream:

*Use a candy thermometer or and instant read thermometer to make sure your temperature just reaches 160F. 160F ensures that all the bad bacteria is killed off in the egg whites. However, be sure to bring the temperature of your egg/sugar mixture up slowly and don’t overcook your mixture. Rushing this process will result in scrambled and cooked egg whites.

*Swiss meringue buttercream can hold quite a bit of flavorings. When adding liquids, such as fruit purees and other liquids, mix in a little at a time. The liquid needs to be able to emulsify into the buttercream. Another reason you want to add a little bit of liquid at a time, is that adding too much liquid can cause the buttercream to become unstable. I recommend reducing your fruit purees into concentrates before adding to the buttercream. You can also use pulverized freeze dried berries for fruity variations of Swiss meringue buttercream.

*If your finished buttercream appears loose and more pudding-like, it’s possible that the butter was too warm when you added it to the meringue. Pop the bowl into the refrigerator for 10-15 minutes then mix again.

Perfect texture! Look at that silky and creamy Swiss meringue buttercream.

The recipe below is for vanilla bean Swiss meringue buttercream. But the flavor options are endless. Here are a few popular flavors to experiment with. Adjust the quantities to suit your taste.

*Chocolate – Add 3 cups (600g) of bittersweet chocolate, melted, to a batch of buttercream

*Fruit flavors – Add 1 to 1 1/2 cups reduced fruit puree, preserves or curd per batch

*Nut Butters, Cookie Butters, Caramel- Add 1 to 1 1/2 cups per batch

*Boozy – Add 1/4 – 1/3 cup flavored liqueur such as Bailey’s, Champagne, or Amaretto per batch

If you try this Swiss meringue buttercream recipe, let me know! Leave a comment in the comment area below and be sure to snap a photo and tag it #littlevintagebaking on Instagram. I love seeing your Little Vintage Baking creations!

Swiss Meringue Buttercream

Silky, creamy, and stable Swiss meringue buttercream perfect for piping, filling and icing cakes

Course Dessert

Keyword swiss meringue buttercream

Prep Time 5 minutes

Cook Time 10 minutes

Mixing 20 minutes

Total Time 15 minutes

Servings 10 cups

Ingredients

9 (300g) large egg whites
2 1/2 cups (500g) granulated sugar
3 1/2 cups (793g) unsalted butter, softened and cut into cubes - I use European style
1/4 tsp fine sea salt
1 1/2 tbsp pure vanilla extract
1 tbsp pure vanilla bean paste

Instructions

Weigh out egg whites and granulated sugar together in a non-reactive bowl, clip a candy thermometer onto the side of the bowl and place over a pot of simmering (not boiling) water, whisking constantly and gently until temperature reaches 160F.
Using a sieve, strain the egg white sugar mixture into the bowl of a stand mixer.
Mix on medium speed with the whisk attachment until the mixture is glossy, reaches stiff peaks and the outside of the bowl is no longer warm. You cannot add butter to the bowl if it is warm or the butter will just melt when added.
Once the mixture reaches stiff peaks, you have Swiss Meringue (Yay!) but we’re going for buttercream here, so onward. Switch out the whisk attachment for the paddle attachment and begin mixing on low speed.
Add the softened butter cubes, a couple at a time, until incorporated.
Now, just let it mix. It might curdle or look lumpy but that’s ok. Keep mixing. This could take some time. The buttercream is ready when it is smooth, satiny and creamy.
Keep mixing on low and add the salt and flavorings. Mix until everything is fully incorporated.