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Chocolate Stout Cake with Coffee Frosting: A Decadent Dessert for Every Occasion


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  • Author: Emma
  • Total Time: 1 hour
  • Yield: 12 servings

Description

This Chocolate Stout Cake with Coffee Frosting is a decadent dessert featuring moist, chocolate-infused layers enriched with stout beer and topped with silky espresso buttercream. Perfect for celebrations or special occasions, it’s a rich, bold dessert that wows with every bite.


Ingredients

For the Chocolate Stout Cake:

  • 1½ cups stout beer (e.g., Guinness)
  • 1½ cups cold unsalted butter
  • 1 cup cocoa powder
  • 3 cups all-purpose flour
  • 3 cups granulated sugar
  • 2¼ teaspoons baking powder
  • 1 teaspoon salt
  • 3 large eggs, room temperature
  • 2/3 cup sour cream
  • 1½ teaspoons vanilla extract

For the Coffee Buttercream Frosting:

  • 1½ cups unsalted butter, room temperature
  • 2 cups confectioner’s sugar
  • 1½ tablespoons espresso powder
  • 1 tablespoon water
  • 1 teaspoon vanilla extract

Optional Garnish:

  • Chocolate sprinkles

Instructions

  1. Prepare the Cake Batter
    • In a medium saucepan, heat the stout beer and cold butter over medium-low heat until the butter melts.
    • Remove from heat and whisk in the cocoa powder until smooth. Let cool to room temperature.
    • In a large mixing bowl, whisk together flour, sugar, baking powder, and salt.
    • In another bowl, whisk the eggs, sour cream, and vanilla extract until smooth.
    • Gradually mix the cooled stout mixture into the egg mixture. Slowly fold in the dry ingredients until the batter is smooth and well combined.
  2. Bake the Cake Layers
    • Preheat your oven to 350°F (175°C).
    • Grease and flour two 9-inch round cake pans or line them with parchment paper.
    • Divide the batter evenly between the prepared pans.
    • Bake for 35–38 minutes, or until a toothpick inserted into the center comes out clean.
    • Let the cakes cool in the pans for 10 minutes, then transfer them to a wire rack to cool completely.
  3. Make the Coffee Buttercream Frosting
    • Beat the butter and confectioner’s sugar together in a large mixing bowl until light and fluffy, about 3–4 minutes.
    • Dissolve the espresso powder in 1 tablespoon of water.
    • Add the dissolved espresso and vanilla extract to the butter mixture. Beat until smooth and creamy.
  4. Assemble the Cake
    • Place one cake layer on a serving plate or cake board. Spread a generous layer of coffee buttercream over the top.
    • Add the second cake layer and spread more frosting on top.
    • Frost the sides of the cake with the remaining buttercream, smoothing it out with a spatula.
    • Garnish with chocolate sprinkles, if desired.

Notes

  • Allow the stout mixture to cool completely before adding to the egg mixture to prevent curdling.
  • Use room-temperature butter for smooth frosting.
  • For a polished look, chill the cake after the crumb coat and apply a final layer of frosting.
  • Prep Time: 25 minutes
  • Cook Time: 35 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American