CHOCOLATE PEANUT BUTTER CAKE FROSTING RECIPES

Steps:

• In a large bowl, cream butter, peanut butter and confectioners' sugar until light and fluffy. Beat in milk and vanilla until smooth.,

Steps:

• For the cake: Preheat the oven to 350 degrees F. Coat three 6-inch-round cake pans with cooking spray.
• Sift the flour, granulated sugar, cocoa powder, baking soda, baking powder and salt into a large bowl. Mix with an electric mixer at medium speed for 1 minute. Add the buttermilk, coffee, vegetable oil and eggs. Mix at medium speed for 1 minute. Scrape the side and bottom of the bowl and mix on medium speed for 1 minute more. Divide the cake batter evenly among the prepared pans. Bake on the top rack until a toothpick inserted in the center of the cakes comes out clean, about 30 minutes.
• Cool the cakes in the pans for 20 minutes then turn out onto wire racks to cool completely. 
• For the buttercream: Add the confectioners' sugar and butter to a large mixing bowl. Beat with an electric mixer on low speed until completely incorporated, 1 to 2 minutes. Add the peanut butter, milk and salt. Mix on high speed until the mixture becomes fluffy and lighter in color, about 2 minutes. Scrape the side and bottom of the bowl and mix again on high speed for 1 minute. 
• To assemble the cake: Level each cake round with a serrated knife or cake leveler. Use an offset spatula to spread a thin layer of the buttercream on top of one round. Top with a second round and spread it with a thin layer of buttercream. Repeat with the third round, spreading the buttercream on the top and sides of the cake. Smooth with a bench scraper.