Irish car bomb cake PreviousNext DessertVery Easy1 h 5 m Send this recipe to a friend Print this page Ask a question to the author Post your photo of this recipe Ingredients 8 For the Guinness chocolate cake: 1 cup stout beer/ Guinness 2 sticks unsalted butter 3/4 cup unsweetened cocoa 2 cups flour 2 cups sugar 1 1/2 teaspoons. baking soda 3/4 teaspoons. salt 2 large eggs 2/3 cup sour cream For the Bailey's ganache: 8 ounces bittersweet chocolate, finely chopped 2/3 cup heavy cream 2 tablespoons. butter, room temperature 2 teaspoons. Bailey's Irish cream For the Bailey's buttercream frosting: 2 sticks unsalted butter, room temperature 6-8 cups powdered sugar, sifted 1/3 cup Bailey's Irish cream, then keep adding until desired consistency is reached View the directions