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Chocolate peanut butter cake slice with peanut butter frosting and chocolate ganache.

Chocolate Peanut Butter Cake

Smiling woman with glasses and dark hair, professional portrait for Baked Bree website.Diane Goodman
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Prep Time 1 hour 30 minutes
Cook Time 25 minutes
Chilling Time 30 minutes
Total Time 2 hours 25 minutes
Course Dessert
Cuisine American
Servings 12 servings
Calories 546 kcal

Ingredients
  

  • 1 and 3/4 cups all-purpose flour
  • 3/4 cup unsweetened cocoa powder
  • 1 and 3/4 cups granulated sugar
  • 2 teaspoons baking soda
  • 1 teaspoon baking powder
  • 1 and 1/4 teaspoons salt divided
  • 1/2 cup canola or vegetable oil
  • 2 large eggs at room temperature
  • 3/4 cup full-fat sour cream at room temperature
  • 1/2 cup buttermilk at room temperature
  • 3 teaspoons pure vanilla extract divided
  • 1/2 cup hot water
  • 1 cup mini semi-sweet chocolate chips
  • 3/4 cup unsalted butter softened to room temperature
  • 1 and 3/4 cups creamy peanut butter
  • 1 and 3/4 cups confectioners’ sugar
  • 3 tablespoons heavy cream or heavy whipping cream at room temperature
  • 8 ounces semi-sweet chocolate finely chopped
  • 1 cup heavy cream or heavy whipping cream

Instructions
 

  • Preheat oven to 350°F. Grease and line three 9-inch cake pans with parchment paper.
  • In a large bowl, whisk together flour, cocoa powder, sugar, baking soda, baking powder, and 1 teaspoon of salt.
    Creamy cake batter in a glass bowl for chocolate peanut butter cake.
  • In a separate bowl, mix oil, eggs, and sour cream until combined. Add buttermilk and 2 teaspoons of vanilla, mixing well.
    Fudgy chocolate cake batter in a ceramic mixing bowl.
  • Combine wet and dry ingredients, then add hot water. Mix until smooth. Fold in chocolate chips.
    Rich chocolate cake batter with chocolate chips in a mixing bowl.
  • Divide batter evenly between pans and bake for 24-26 minutes, or until a toothpick comes out clean.
    Dividing Chocolate Peanut Butter Cake batter evenly between two round cake pans.
  • Cool cakes completely in pans on a wire rack.
    Chocolate Peanut Butter Cake layers cooling on a wire rack.
  • For the frosting, beat butter until creamy. Add peanut butter, then confectioners’ sugar, the remaining vanilla extract, the remaining salt, and heavy cream. Beat until smooth.
    Mixing creamy peanut butter frosting for Chocolate Peanut Butter Cake.
  • Assemble the cake with peanut butter frosting between each layer and a thin crumb coat on the outside. Chill for 30 minutes.
  • For the ganache, pour hot cream over chopped chocolate. Let sit, then stir until smooth. Chill until thickened.
    Pouring hot cream over chopped chocolate for Chocolate Peanut Butter Cake ganache.
  • Spread ganache over the chilled cake. Decorate with remaining frosting and serve.
    Drizzling chocolate ganache over a chocolate peanut butter cake with peanut butter frosting.

Nutrition

Calories: 546kcalCarbohydrates: 26gProtein: 6gFat: 48gSaturated Fat: 25gSodium: 451mgFiber: 5g
Keyword chocolate, chocolate peanut butter cake, peanut butter
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