Guinness Chocolate Cake Recipe – Rich, Boozy & Unforgettable
Dark, fudgy, and spiked with a full pour of Guinness — this show-stopping chocolate cake is St. Patrick's Day dessert perfection. The stout deepens every layer of chocolate flavor while cream cheese frosting brings the whole thing together. You'll be making this long after March 17.
Ingredients
Main ingredients
- all-purpose flour 1.75 cups
- unsweetened cocoa powder 0.75 cups
- baking soda 1.5 tsp
- fine sea salt 0.5 tsp
- granulated sugar 2 cups
- Guinness Extra Stout 1 cups
- unsalted butter 0.75 cups
- sour cream 0.75 cups
- large eggs 2
- vanilla extract 2 tsp
Seasonings/Sauce
- cream cheese, softened 8 oz
- unsalted butter, softened 0.5 cups
- powdered sugar 2 cups
- heavy cream 2 tbsp
- vanilla extract 1 tsp
- pinch fine sea salt 0.25 tsp
Nutrition summary
Carbohydrates
53 g
49%
Protein
7 g
7%
Fat
19 g
40%
Cooking steps
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1
Preheat oven to 350°F (175°C). Butter a 9-inch springform pan and line the base with parchment—this prevents sticking and helps the cake release cleanly after baking.
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2
In a medium saucepan over medium heat, combine Guinness and butter. Warm until the butter is just melted—avoid boiling, as too much evaporation will concentrate bitterness. Remove from heat and whisk in cocoa powder and sugar until lump-free.
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3
Let the stout mixture cool for 5 minutes (so it doesn't scramble eggs), then whisk in sour cream, eggs, and vanilla until smooth. This order ensures even emulsification and maximum fudge texture.
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4
In a large bowl, sift together flour, baking soda, and salt. Gently fold the wet Guinness mixture into the dry ingredients. Mix just until no pockets of flour remain—over-mixing develops gluten, making the cake tough rather than tender.
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5
Pour the batter into the prepared pan and bake for 45–55 minutes, or until the top is set and a tester inserted in the center comes out with a few moist crumbs. Don't overbake; fudgy texture is key.
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6
Cool completely in the pan on a wire rack—this lets the crumb set and prevents collapse. Remove and transfer to a serving platter.
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7
For the frosting: Beat softened cream cheese and butter until creamy and smooth, then add powdered sugar gradually, vanilla, cream, and salt. Whip until light and spreadable.
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8
Spread the frosting in a thick swoop right to the edge, mimicking a pint of Guinness with its creamy head. Refrigerate for at least 30 minutes to set the frosting before slicing for clean layers.
Personalized Q&A
Q. What makes this Guinness Chocolate Cake so rich and unforgettable?
Reducing bitterness by gently warming the Guinness and butter (without boiling) deepens the chocolate flavor and ensures a smooth batter. Authentic technique—folding the wet mixture into sifted dry ingredients and avoiding over-mixing—produces a tender, fudgy crumb.
Q. My cake was dense or gummy. What went wrong?
This usually happens if the batter is over-mixed after adding dry ingredients. For the best texture, mix only until just combined so you don't develop excess gluten. Always check doneness with a toothpick—overbaking can also dry out or toughen the cake.
Q. Can I substitute another stout or use regular butter?
While you can use other stouts, Guinness Extra Stout is preferred for its bold flavor that holds up in baking. Regular unsalted butter works, but Irish butter gives an extra-rich finish. Avoid swapping sour cream, as it provides moisture and tang needed for structure.
Q. How many calories are in each serving of this Guinness Chocolate Cake?
Each serving (120g) of this cake contains about 430 kcal, with 53g carbohydrates (49% of calories), 7g protein (7%), and 19g fat (40%).
Q. Can I make this cake ahead of time, and how should I store it?
Yes, you can bake the cake and frost it a day ahead. Store leftovers tightly covered in the refrigerator for up to 3 days. Let chilled slices sit at room temperature for 30 minutes before serving to soften the crumb and frosting.
