If you’ve ever wondered how to make a truly moist chocolate Guinness cake, this recipe will walk you through a simple technique that creates deep chocolate flavor, an incredibly tender crumb, and a beautifully balanced Irish-inspired dessert. In this guide, I’ll show you exactly how to make a rich Guinness chocolate cake using cocoa powder, a touch of instant coffee, and real Guinness stout to enhance the chocolate flavor without making the cake taste like beer.
Table of Contents
- A Little Story Behind This Guinness Cake
- Why I Love This Chocolate Guinness Cake
- Ingredients (And Why They Work)
- Irish Cream Buttercream Frosting
- How to Make Guinness Cake
- Irish Cream Buttercream Frosting
- Variations
- How to Store Guinness Cake
- Final Thoughts
If you’ve ever wondered how to make a truly moist chocolate Guinness cake, this recipe will walk you through a simple technique that creates deep chocolate flavor, an incredibly tender crumb, and a beautifully balanced Irish-inspired dessert. In this guide, I’ll show you exactly how to make a rich Guinness chocolate cake using cocoa powder, a touch of instant coffee, and real Guinness stout to enhance the chocolate flavor without making the cake taste like beer.
A Little Story Behind This Guinness Cake
The first time I baked a Guinness chocolate cake, I wasn’t convinced beer belonged in dessert. But the moment it came out of the oven, the aroma told me everything I needed to know.
Guinness stout doesn’t make the cake taste like beer—instead, it intensifies the cocoa and creates an incredibly moist chocolate cake with subtle caramel notes.
It quickly became one of my favorite cakes to bake around March or for gatherings when I want something rich but still simple to make.
Why I Love This Chocolate Guinness Cake
- Deep chocolate flavor
- Incredibly moist crumb
- Balanced sweetness
- Easy one-bowl cake batter
- Perfect with Irish cream frosting
- Elegant but approachable dessert
It’s the kind of cake recipe that feels special but doesn’t require complicated steps.
Ingredients (And Why They Work)
Flour
Provides structure for the cake.
Cocoa Powder
Use unsweetened cocoa powder for deep chocolate flavor.
Guinness Stout
Adds moisture and subtle roasted notes that enhance chocolate.
Butter
Adds richness and helps create a tender crumb.
Granulated Sugar + Brown Sugar
Using both creates depth and moisture.
Eggs (Room Temperature)
Room temperature eggs help the cake batter mix smoothly.
Greek Yogurt
Adds moisture and slight tang similar to sour cream.
Instant Coffee
Just a small amount intensifies the chocolate flavor without tasting like coffee.
Vanilla Extract
Enhances sweetness and rounds out the flavor.
Irish Cream Buttercream Frosting
Instead of traditional cream cheese frosting, this cake uses a smooth Irish cream buttercream made with Baileys. It adds just the right amount of sweetness and pairs beautifully with the stout.
How to Make Guinness Cake
Step 1: Preheat the Oven
Preheat oven to 350°F and grease a 9×5 loaf cake pan (an 8-inch round pan works well too).
Step 2: Mix Dry Ingredients
In a large bowl whisk together:
- Flour
- Baking soda
- Salt
- Cocoa powder
Step 3: Combine the Guinness Mixture
In another bowl mix:
- Guinness beer
- Instant coffee
- Softened butter
- Granulated sugar
- Brown sugar
Whisk until smooth.
Step 4: Add Eggs and Yogurt
Add the eggs one at a time, whisking well after each addition. Stir in the Greek yogurt and vanilla extract.
Step 5: Make the Cake Batter
Gradually fold the dry ingredients into the wet mixture until a smooth chocolate cake batter forms.
Step 6: Bake
Pour batter into the prepared cake pan.
Bake for 40–45 minutes, or until a toothpick inserted in the center comes out clean.
Step 7: Cool Completely
Allow the cake to cool completely before frosting.
Irish Cream Buttercream Frosting
Beat together:
- ½ cup butter (room temperature)
- 1½ cups icing sugar
- 1 tsp vanilla extract
- 2 tbsp Baileys or Irish cream
Add 1–2 tbsp milk until the frosting reaches a smooth, spreadable consistency.
Spread generously over the cooled cake.
Expert Tips for the Best Chocolate Guinness Cake
Use room temperature ingredients
This helps create a smooth batter and even texture.
Don’t overmix the batter
Overmixing can make the cake dense.
Let the cake cool completely before frosting
Otherwise the buttercream will melt.
Use good cocoa powder
High-quality cocoa powder makes a noticeable difference in flavor.
Variations
This guinness cake recipe is very adaptable:
- Make it a layer cake with double frosting
- Use cream cheese frosting instead of buttercream
- Add chocolate ganache drizzle
- Add chocolate chips to the batter
- Bake as cupcakes
How to Store Guinness Cake
Store the cake in an airtight container.
Room temperature: 2 days
Refrigerated: 4–5 days
Let the cake come to room temperature before serving for the best texture.
FAQ
Final Thoughts
This chocolate Guinness cake is the kind of dessert that feels both cozy and impressive. The stout enhances the chocolate, the cake stays incredibly moist, and the Irish cream buttercream adds the perfect finishing touch.
It’s simple enough for a weekend bake but special enough to serve for celebrations.
And once you taste that deep, rich chocolate flavor—you’ll understand exactly why Guinness and chocolate are such a perfect pairing. 🍫🍺
Chocolate Guinness Cake with Irish Cream Buttercream
This rich and moist chocolate Guinness cake is made with cocoa powder, stout beer, Greek yogurt, and a hint of coffee for deep chocolate flavor. Finished with a smooth Irish cream buttercream frosting, it’s an easy yet impressive dessert perfect for celebrations or cozy baking days.
Ingredients
- 1 ¾ cups all-purpose flour
- ¾ tsp baking soda
- ½ tsp salt
- ⅔ cup cocoa powder
- ½ cup butter, softened
- ½ cup Guinness beer
- ½ cup granulated sugar
- ½ cup brown sugar
- 2 eggs, room temperature
- ½ cup Greek yogurt
- 1 tbsp vanilla extract
- 1 tsp instant coffee
Instructions
- Preheat oven to 350°F and grease an 8-inch cake pan.
- In a large bowl, whisk together flour, baking soda, salt, and cocoa powder.
- In another bowl, whisk softened butter, Guinness beer, granulated sugar, and brown sugar until smooth.
- Add eggs one at a time, then whisk in Greek yogurt, vanilla, and instant coffee.
- Gradually fold the dry ingredients into the wet mixture to form a smooth cake batter.
- Pour batter into prepared pan and bake for 40–45 minutes, or until a toothpick inserted in the center comes out clean.
- Allow cake to cool completely before frosting.
Nutrition Information:
Yield: 10 Serving Size: 1Amount Per Serving: Calories: 332Total Fat: 13gSaturated Fat: 7gUnsaturated Fat: 6gCholesterol: 65mgSodium: 329mgCarbohydrates: 45gFiber: 4gSugar: 25gProtein: 7g
Christopher is a food and lifestyle expert, recipe developer and the content creator behind May Eighty Five. With over 6 years of creating recipes for your favourite food brands, he also shares tips, tricks and how to’s that he has learnt over the years. Every week, he shares quick, simple and mostly healthy recipes along with some home and entertaining tips. You will find flavorful cocktails, delicious appetizers, tasty mains and some indulgent desserts.
