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Playing Clodagh McKenna's Guinness Cake

Clodagh McKenna promises her gorgeous Guinness Cake will be the best cake you've ever had.

For more St. Patrick's Day dessert ideas, click here.


  • 2 ¼ sticks plus 1 tablespoon unsalted butter
  • 1 ¼ cups Guinness stout beer
  • 1 cup unsweetened cocoa powder, sifted
  • 2 large eggs
  • 2 cups plus 2 tablespoons superfine sugar
  • 2 teaspoons vanilla extract
  • ¾ cup buttermilk
  • 2 ½ cups all-purpose flour
  • 2 teaspoons baking soda
  • 1 teaspoon baking powder
For the Frosting:
  • 7 tablespoons unsalted butter, softened
  • 2 ½ cups sifted confectioners' sugar
  • 1 teaspoon vanilla extract
  • 1 ¼ cups cream cheese (don't use low-fat for this)


Serves: 10


Preheat the oven to 325°F. Line the bottom of a 12-inch round springform pan with parchment paper.

For the cake, heat the butter in a large saucepan over medium heat until melted. Stir in the Guinness, then remove from the heat and stir in the cocoa.

In a large mixing bowl, beat the eggs, sugar, vanilla extract and buttermilk. Slowly mix in the Guinness mixture.

Sift the flour, baking soda and baking powder together into a separate large bowl. Using a handheld electric mixer, slowly mix the wet mixture into the dry ingredients and keep beating until it is well combined.

Transfer the batter to the prepared cake pan and bake in the oven for about 45 minutes. Test to make sure the cake is cooked by inserting a toothpick into the center of the cake—if it comes out clean, the cake is cooked. Let cool in the pan, then transfer from the pan onto a wire rack.

While the cake is cooling, make the frosting. Using a handheld electric mixer, blend all the ingredients together until light and fluffy.

Place the cooled cake on a plate and generously spread the frosting on top.

The cake will keep for up to 1 week in an airtight container.

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