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This rich and decadent chocolate peanut butter cup cake is a dream for chocolate lovers! Layers of moist chocolate cake, creamy peanut butter frosting, and peanut butter cups make this irresistible.

Ingredients

Units Scale

For the Chocolate Cake:

  • 2 cups all-purpose flour
  • 3/4 cup unsweetened cocoa powder
  • 2 cups sugar
  • 2 tsp baking soda
  • 1 tsp baking powder
  • 1/2 tsp salt
  • 1 cup buttermilk
  • 1/2 cup vegetable oil
  • 2 eggs
  • 1 tsp vanilla extract
  • 1 cup hot water

For the Peanut Butter Frosting:

 

  • 1 cup butter, softened
  • 1 cup creamy peanut butter
  • 3 cups powdered sugar
  • 1/4 cup heavy cream

Instructions

  • Bake the cake: Preheat oven to 350°F. Mix dry ingredients in a bowl. Add wet ingredients and mix until smooth. Stir in hot water last. Divide into cake pans and bake for 30 minutes. Cool completely.
  • Make the frosting: Beat butter and peanut butter together. Gradually add powdered sugar and cream until smooth.
  • Assemble the cake: Layer chocolate cake with peanut butter frosting between layers. Frost the outside and top with peanut butter cups and melted chocolate drizzle.

 

  • Chill & serve: Refrigerate for 30 minutes before slicing for clean cuts.

Notes

  • Use dark chocolate for a richer taste.

 

  • Cake layers can be baked ahead and frozen for easy assembly.