Introduction to Guinness Chocolate Cake with Irish Buttercream
If you’re on the hunt for a dessert that screams indulgence and festivity, look no further than Guinness Chocolate Cake with Irish Buttercream. This cake masterfully combines rich cocoa and the deep, complex flavors of Guinness beer, making it an extraordinary treat for any celebration, especially St. Patrick's Day!
Why Guinness and chocolate are a match made in heaven?
You might wonder, why is this pairing so popular? The rich bitterness of Guinness enhances the sweetness of chocolate, bringing out deep notes that elevate the flavor profile of your cake. Additionally, the carbonation in Guinness adds moisture, resulting in an incredibly moist and fudgy cake that’s hard to resist. According to Food & Wine, using dark beers can enhance the flavors in baked goods, adding an unexpected twist that delights the palate.
The crowning glory of this recipe is the Irish buttercream, which adds a velvety finish that balances the cake's richness. With its thickness and creaminess, it truly elevates this dessert to gourmet status.
So whether you’re celebrating a special occasion or simply in need of a little culinary adventure, whip up this cake and treat yourself to an experience that beautifully blends culture, flavor, and nostalgia. You won’t regret it!

Ingredients for Guinness Chocolate Cake with Irish Buttercream
Essential ingredients for the cake
To whip up a delectable Guinness Chocolate Cake with Irish Buttercream, start with these core ingredients that promise a rich flavor and moist texture:
- All-purpose flour – 1 ¾ cups offers the perfect structure.
- Granulated sugar – 2 cups adds the necessary sweetness.
- Unsweetened cocoa powder – ¾ cup contributes a deep chocolatey essence.
- Baking soda and baking powder – essential leavening agents to help the cake rise.
- Sour cream or plain full-fat yogurt – ¾ cup keeps the cake moist and tender.
- And, of course, 1 cup of Guinness beer for that signature flavor!
Key components of the Irish buttercream
The Irish Buttercream elevates this cake with its creamy and indulgent taste. You’ll need:
- Unsalted butter – 4 sticks provide a rich base.
- Powdered sugar – 6 cups, sifted, creates that smooth, sweet texture.
- Irish cream – ¼ cup plus 2 tablespoons infuses a delightful flavor.
Ingredients for the chocolate drip
To add a decadent finish, the chocolate drip is a must. Gather:
- Semisweet or bittersweet chocolate – 4 ounces, finely chopped for the perfect melt.
- Heavy cream – ½ cup to create a luscious ganache that drips beautifully over the cake.
With these ingredients on hand, you're ready to create a stunning and delicious masterpiece that will impress your friends and family! For a deeper dive into each element, check out the resources at Serious Eats and BBC Good Food. Enjoy baking!
Step-by-Step Preparation of Guinness Chocolate Cake with Irish Buttercream
Prepping your workspace and tools
Before diving into the delightful world of baking, it’s important to set the stage for your Guinness Chocolate Cake with Irish Buttercream. Start by gathering all your ingredients and tools. You’ll need:
- Two 8-inch round cake pans
- Parchment paper
- Mixing bowls (both large and medium)
- A whisk and spatula
- An electric mixer (for the buttercream)
- A cake stand or plate for assembly
Once you have everything at your fingertips, preheat your oven to 350°F (175°C) and grease your cake pans generously. This way, your cake layers will slip out effortlessly after baking.
Mixing the dry ingredients for the cake
In a large mixing bowl, combine your dry ingredients. This includes:
- 1 ¾ cups all-purpose flour
- 2 cups granulated sugar
- ¾ cup unsweetened cocoa powder
- 2 teaspoons baking soda
- ½ teaspoon baking powder
- 1 teaspoon fine sea salt
Whisk these together until well blended—this step ensures your cake has a uniform texture and crumb.
Whisking together the wet ingredients
In another mixing bowl, whisk together the wet ingredients. You'll need:
- ¾ cup sour cream or plain full-fat yogurt (make sure it’s at room temperature)
- ½ cup fresh vegetable oil
- 3 large eggs (also at room temperature)
- 1 teaspoon vanilla extract
- 1 cup Guinness beer
Be careful to incorporate everything smoothly, which adds richness to your Guinness Chocolate Cake with Irish Buttercream.
Combining wet and dry mixtures
Now for the fun part! Pour your wet mixture into the bowl with the dry ingredients. Using a spatula, gently fold them together until just combined. Be cautious not to overmix; a few lumps are okay!
Baking the cake layers
Divide the batter between your prepared pans and bake for 35 to 40 minutes, or until a cake tester comes out clean. Once baked, let the cakes cool in their pans for about 30 minutes before moving them to a cooling rack.
Making the Irish buttercream
While your cakes cool, let’s whip up the Irish buttercream. In a large bowl, beat 4 sticks of unsalted butter until fluffy, then gradually add 6 cups of sifted powdered sugar and ¼ cup plus 2 tablespoons of Irish cream. Mix until light and smooth—this is where all that delicious creaminess comes into play.
Assembling the cake
Place one layer of the cake on your serving plate and frost generously with buttercream. Add the second layer on top, and apply a thin crumb coat—this helps seal in crumbs. Chill the cake until the frosting is firmer.
Creating the chocolate drip
For the final flourish, prepare the chocolate drip. Heat ½ cup of heavy cream until it simmers, then pour it over 4 ounces of finely chopped chocolate. Stir until smooth and let it cool slightly before drizzling over your chilled cake. Don’t forget to add your favorite toppings, whether it’s sprinkles or chocolate curls!
With every step, you're creating a dessert that’s not just a seasonal delight, but a comforting treat for any occasion. Enjoy the process and the indulgent results!

Variations on Guinness Chocolate Cake with Irish Buttercream
Adding Different Flavor Extracts
If you're curious about elevating your Guinness Chocolate Cake with Irish Buttercream, consider experimenting with flavor extracts. A splash of almond extract can add a delightful nuttiness, while mint extract will give it a refreshing twist, perfect for those who love chocolate mint combinations. Just remember to use extracts sparingly—start with ½ teaspoon, adjusting to taste!
Using Alternative Frostings
Bored of standard buttercream? No problem! You can swap out the Irish buttercream for a cream cheese frosting for a tangy contrast to the rich cake. Or try a whipped ganache for a lighter, airy finish. For those who enjoy a unique flair, a mousse frosting made with whipped cream and chocolate could be an exciting option. Each of these alternatives will create a deliciously distinct version of your cake!
For more creative ideas, check out Food Network and Bon Appétit for inspiration on cake variations that can spice up any celebration!
Cooking Tips and Notes for Guinness Chocolate Cake with Irish Buttercream
Importance of Ingredient Temperature
When making your Guinness Chocolate Cake with Irish Buttercream, it’s crucial that ingredients like eggs and butter are at room temperature. This helps create a smooth batter and ensures the buttercream whips up light and fluffy. For the best results, take your ingredients out of the fridge about 30 minutes before you start baking. If you forget, you can place eggs in a bowl of warm water to quickly bring them to room temperature.
How to Avoid Overmixing
Overmixing is a common pitfall when baking cakes. For your Guinness Chocolate Cake, mix until just combined after combining wet and dry ingredients. Lumps are fine! This prevents gluten from developing too much, keeping your cake tender and moist. Remember, there’s a difference between combined and overmixed. Keep it gentle, and you’ll achieve that perfect fudgy texture!
For more on the importance of mixing methods, check out this helpful guide. Happy baking!

Serving Suggestions for Guinness Chocolate Cake with Irish Buttercream
Perfect pairings for this cake
When enjoying Guinness Chocolate Cake with Irish Buttercream, consider serving it with a dollop of fresh whipped cream or a scoop of vanilla ice cream for a delightful contrast. Pairing it with a rich cup of coffee or an Irish breakfast tea can enhance the cake's deep flavors. For a refreshing twist, a light fruit salad or tart berries complements the cake beautifully, balancing the sweetness with a touch of acidity.
Creative serving ideas
Think beyond the usual slice! Transform your Guinness Chocolate Cake into mini dessert cups by layering cake pieces with Irish buttercream and chocolate shavings. You can also use it as a base for a delightful trifle, alternating layers with custard and fruit. For gatherings, serve it as a cupcake version; simply bake the batter in cupcake liners and top with a swirl of that luscious buttercream. These creative twists not only elevate presentation but also allow for easy individual servings.
Time Breakdown for Guinness Chocolate Cake with Irish Buttercream
Preparation Time
Getting ready to create your Guinness Chocolate Cake with Irish Buttercream will take about 45 minutes. This includes gathering your ingredients, mixing your batter, and prepping your cake pans.
Cooking Time
Once the batter is ready, you’ll be baking the cake for 40 minutes. It’s the perfect time to tidy up your kitchen or sip on a cup of coffee while you wait!
Total Time
In just 1 hour and 25 minutes, you can have a delightful cake fresh out of the oven, ready to impress your friends and family. Remember, it’s all about enjoying the process! For more tips on perfecting your baking skills, check out the Food Network for inspiration.
Nutritional Facts for Guinness Chocolate Cake with Irish Buttercream
Calories per serving
Each slice of this delectable Guinness Chocolate Cake with Irish Buttercream packs around 450 calories, making it a rich yet indulgent treat perfect for special occasions.
Key nutrients
This cake offers essential nutrients, including:
- Protein: From eggs and butter
- Calcium: Present in the butter and dairy components
- Iron: From cocoa powder and Guinness beer
Dietary considerations
While this dessert is quite rich, those managing gluten sensitivities can substitute the all-purpose flour with a gluten-free blend. Remember, this cake contains dairy, so opt for lactose-free butter and cream if needed. Want to learn more about baking basics? Check out this guide on baking substitutes for helpful tips!
FAQs about Guinness Chocolate Cake with Irish Buttercream
Can I make this cake ahead of time?
Absolutely! Guinness Chocolate Cake with Irish Buttercream can be made ahead of time. You can bake the cake layers a day or two in advance and let them cool completely before wrapping them tightly in plastic wrap. Just make sure to frost them the day you plan to serve for the freshest taste.
How should I store leftover cake?
Leftover cake can be stored in a cool, dry room temperature for 2-3 days under a cake keeper. This way, the Irish Buttercream acts as a protective seal, keeping the cake moist. Avoid using plastic wrap, as it can cause condensation, affecting the frosting's texture.
What are some ways to customize the cake?
Get creative with your Guinness Chocolate Cake! You can:
- Use different types of beer for unique flavor profiles (try a dark ale for extra depth).
- Add chocolate chips or nuts into the batter for texture.
- Experiment with flavored buttercream, such as mocha or caramel, for a fun twist.
For more customization ideas, check out this guide to cake variations. Your guests will love the personalized touch!
Conclusion on Guinness Chocolate Cake with Irish Buttercream
In summary, the Guinness Chocolate Cake with Irish Buttercream is an indulgent treat that’s perfect for any celebration, especially St. Patrick’s Day! Its rich chocolate flavors combined with the creamy, luscious buttercream create a dessert that will impress friends and family. Try it, and let the admiration flow!

Guinness Chocolate Cake with Irish Buttercream
Equipment
- Mixing bowl
- Electric Mixer
- spatula
- cake pans
- Saucepan
- heatproof bowl
- squeeze bottle
Ingredients
For the Guinness Chocolate cake
- 1 ¾ cups all-purpose flour measured correctly
- 2 cups granulated sugar
- ¾ cup unsweetened cocoa powder
- 2 teaspoons baking soda
- ½ teaspoon baking powder
- 1 teaspoon fine sea salt
- ¾ cup sour cream or plain full-fat yogurt at room temperature
- ½ cup fresh vegetable oil
- 3 large eggs at room temperature
- 1 teaspoon vanilla extract
- 1 cup Guinness beer
For the Irish Buttercream
- 4 sticks unsalted butter at cool room temperature
- 6 cups powdered sugar sifted
- ¼ cup plus 2 tablespoons Irish cream such as Bailey’s
For the Chocolate Drip
- 4 ounces semisweet or bittersweet chocolate finely chopped
- ½ cup heavy cream
- sprinkles or chocolate curls for topping, optional
Instructions
Make the cake
- Preheat the oven to 350°F. Generously grease two 8-inch wide x 3-inch deep cake pans and line with parchment paper rounds.
- In a large mixing bowl, whisk together the flour, sugar, cocoa, baking soda, baking powder, and salt.
- In a medium bowl, whisk together the sour cream, vegetable oil, eggs, vanilla, and beer.
- Add the wet ingredients into the dry ingredients and stir with a spatula until just combined, being careful not to overmix.
- Divide the batter between the prepared pans and bake for 35 to 40 minutes, or until a cake tester comes out clean. Cool the cakes in their pans for 30 minutes before carefully turning them out onto a cooling rack or wire rack to cool completely. If possible, freeze the cakes while you prepare the buttercream.
Make the buttercream
- In a large bowl, use an electric mixer or hand mixer to beat the butter until light and fluffy. Gradually add the sifted powdered sugar, then the Irish cream. Beat the mixture on high speed until very light, fluffy, and smooth, about 3 minutes. If the frosting is too thick, add a splash more Irish cream. If it’s too thin, add more powdered sugar.
Assemble
- Place one cake layer on a cake stand or serving plate. Frost the top of the cake generously, as this will become the filling. Use even more if you're decorating as a 'naked' cake as shown in the photos. Top with the other cake layer, flat side up.
- With an offset spatula, spread a very thin layer of frosting all over the cake. This layer is a crumb coat and should act like spackle. For the smoothest frosting, return the cake to the fridge or freezer until firm to the touch.
- Spread the remaining frosting all over the cake. If desired, focus the frosting on the top to maintain the 'naked' look. Refrigerate while you prepare chocolate drip.
Make chocolate drip
- Place the chopped chocolate in a heatproof bowl. In a small pan, bring the heavy cream to a simmer then immediately remove from heat and pour over chocolate. You can also do this in the microwave. Cover for a few minutes then stir until smooth.
- Allow to cool until it has thickened but is still pourable, about 10 minutes. Don’t place ganache in the fridge to cool. Test the consistency of the drip by pouring down the side of a glass. If it’s too thick, microwave for 5 to 10 seconds. If it’s too thin, continue to cool.
- Carefully pour some of the ganache over the top of the chilled cake. Use an offset spatula to quickly smooth the ganache over the top of the cake before it sets, spreading evenly just to the cake’s edge. Use a squeeze bottle to gently squeeze one drip at a time down the sides of the cake.
- Before the ganache fully sets, add sprinkles, chocolate curls, or any other decor you like. It won’t adhere properly if you allow the ganache to firm up before adding.





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