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This Guinness chocolate cake is my favorite dessert to bring to celebrations or just to enjoy with a strong cup of coffee after dinner. It feels indulgent but is surprisingly easy to make with pantry staples and a few special ingredients that add a rich, moist depth.
I threw this together for a St. Patrick’s Day gathering once, and it quickly became a signature sweet treat for the season in my house.
Ingredients
- Granulated sugar and light brown sugar: Provide balanced sweetness and moisture packed brown sugar adds a subtle caramel note
- All-purpose flour: Choose a fresh, well-sifted flour for a light texture
- Unsweetened cocoa powder: Use a high-quality cocoa powder for deep rich chocolate flavor
- Espresso powder: This enhances the chocolate without tasting like coffee itself
- Baking soda and baking powder: Help the cake rise and stay fluffy
- Salt: Balances the sweetness and sharpens flavors
- Large eggs at room temperature: Help bind the batter and create a tender crumb
- Full-fat sour cream at room temperature: Adds moisture and slight tang that keeps the cake from drying out
- Guinness beer: The star ingredient for richness and a unique malty flavor do not substitute
- Vegetable oil: Keeps the cake moist longer than butter would
- Whole milk: Adds moisture and richness
- Vanilla extract: Adds warmth and depth to the batter and frosting
- Unsalted butter at room temperature: Essential for smooth, creamy frosting
- Confectioners’ sugar sifted: For a silky, lump-free frosting
- Baileys Irish cream liqueur: Adds a subtle Irish cream flavor that pairs wonderfully with chocolate
- White chocolate, melted and cooled: Folded into the frosting for a luscious finish
- Optional whiskey salted caramel ingredients: For drizzling if desired to add a boozy, sweet contrast
Instructions
- Build The Dry Mix:
- Combine the sugars flour cocoa powder espresso powder baking soda baking powder and salt in a large bowl whisking together to evenly distribute the leaveners and cocoa. This ensures a balanced rise and rich flavor throughout the cake.
- Mix The Wet Ingredients:
- In another bowl whisk the eggs sour cream Guinness milk vegetable oil and vanilla extract until completely blended. The sour cream and oil create moisture while Guinness adds moisture and complexity.
- Combine Wet And Dry:
- Gently mix the wet into the dry ingredients just until combined. Overmixing can make the cake dense, so stir carefully to keep the batter light.
- Prepare The Pan And Bake:
- Grease a 10-cup Bundt cake pan well to prevent sticking. Pour in the batter and bake at 325 degrees Fahrenheit for 50 minutes or until a toothpick inserted in the center comes out clean.
- Cool The Cake:
- Allow the cake to cool in the pan for 15 minutes so it firms up then carefully invert onto a cooling rack to cool completely. This step helps the cake keep its shape and texture.
- Make The Frosting:
- Beat butter until smooth and creamy. Gradually add sifted confectioners’ sugar then mix in Baileys whole milk vanilla and salt until smooth. Finally fold in the melted white chocolate and beat until the frosting is fluffy and evenly combined.
- Frost The Cake:
- Spread the frosting generously over the cooled cake. Optionally drizzle whiskey salted caramel on top for an extra layer of flavor and indulgence.
My favorite part is adding the melted white chocolate to the frosting. It makes the icing decadently smooth and adds subtle sweetness that balances the bitterness in the cake. Sharing this cake at family gatherings has always brought smiles and requests for seconds.
Storage Tips
Store leftover cake in an airtight container at room temperature for up to three days to keep the frosting fresh. You can also refrigerate for up to a week but let the cake come to room temperature before serving for best texture.
Ingredient Swaps
You can substitute sour cream with Greek yogurt for a tangier taste and similar moisture If you do not have espresso powder a strong brewed coffee concentrate works but reduces some chocolate depth Avoid substituting Guinness with other beers as the flavor is quite specific and affects the cake’s signature richness.
Serving Ideas
Serve slices with whipped cream fresh berries or a scoop of vanilla ice cream for extra indulgence Pair with a cup of strong black coffee or a glass of Baileys on the side to enhance the Irish cream flavors
This cake combines deep chocolate richness with a creamy frosting for a show-stopping dessert. It’s perfect for sharing or savoring quietly with coffee.
Frequently Asked Recipe Questions
- → What role does Guinness play in this cake?
Guinness adds a rich, malty depth and subtle bitterness that enhances the chocolate flavor and moistness of the cake.
- → Can I use a different type of beer instead of Guinness?
Guinness is recommended for its distinctive flavor; substituting other beers may alter the taste and texture significantly.
- → Why is espresso powder included in the ingredients?
Espresso powder intensifies the chocolate notes without imparting a coffee flavor, making the cocoa taste more vibrant.
- → How do I achieve a smooth and fluffy frosting texture?
Beat the butter until smooth before adding confectioners’ sugar gradually, then mix in Baileys, white chocolate, vanilla, and salt until light and airy.
- → Is the whiskey salted caramel drizzle necessary?
The drizzle is optional but adds a rich, caramelized flavor with a touch of saltiness and whiskey warmth, complementing the frosting beautifully.