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Peanut Butter Cake with Dark Chocolate Frosting
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2.67 from 6 votes

Peanut Butter Cake with Chocolate Frosting

Is there any better flavor combination than Chocolate and Peanut Butter? I think it has stood the test of time for a reason… it IS the best!
Prep Time25 minutes
Cook Time25 minutes
Total Time50 minutes
Course: Dessert
Cuisine: American
Keyword: Peanut Butter Cake with Chocolate Frosting
Servings: 12 servings
Author: Amanda Rettke

Ingredients

Cake

  • cups all-purpose flour
  • 1 teaspoon baking powder
  • ¼ teaspoon salt
  • cup creamy peanut butter
  • ½ cup (113g) butter, softened to room temperature
  • ¾ cup dark brown sugar
  • 3 large eggs, room temperature
  • 1 teaspoon good quality vanilla extract
  • ¼ cup milk

Dark Chocolate Frosting

  • cups confectioners' sugar
  • cup unsweetened cocoa powder
  • 6 tablespoons unsalted butter, softened to room temperature
  • 6 tablespoons heavy cream
  • 1 teaspoon vanilla extract

Instructions

  • Preheat oven to 350°F. Prepare an 8 inch round cake pan.

Cake

  • Mix together the flour, baking powder, and salt. Set aside.
  • Cream together the peanut butter, butter, and brown sugar until light and fluffy; about 2 minutes on medium speed.
  • With mixer on slow, beat in eggs and vanilla. Scrape down the sides as needed.
  • Slowly beat in the flour mixture alternately with the milk, mixing until just combined.
  • Do not overmix. Batter will be thick.
  • Bake for 32-35 minutes or until toothpick inserted in the middle of a cake comes out clean. Allow cake to cool before frosting.

Frosting

  • Sift together the powdered sugar and cocoa powder to assure there are no lumps. Set aside.
  • With a stand mixer, beat the butter at medium speed until fluffy - about 2 minutes.
  • With mixer on low, gradually add the sifted sugar/cocoa powder alternately with the heavy cream and vanilla.
  • Add more powdered sugar if frosting is too dark. Add a pinch of salt if frosting is too sweet.