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Reese's Peanut Butter Cup Cake

A decadent dessert combining rich chocolate cake with creamy peanut butter, perfect for celebrations or as a delightful treat.
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Prep Time 20 minutes
Cook Time 35 minutes
Total Time 55 minutes
Servings: 12 servings
Course: Cake, Dessert
Cuisine: American
Calories: 450
Ingredients Method Notes

Ingredients
  

Cake Ingredients
  • 2 cups all-purpose flour
  • 1.75 cups granulated sugar
  • 0.75 cups unsweetened cocoa powder
  • 1.5 teaspoons baking powder
  • 1.5 teaspoons baking soda
  • 1 teaspoon salt
  • 2 large eggs
  • 1 cup whole milk
  • 0.5 cups vegetable oil
  • 2 teaspoons vanilla extract
  • 1 cup boiling water
Frosting Ingredients
  • 1 cup creamy peanut butter
  • 0.5 cups unsalted butter, softened
  • 2 cups powdered sugar
  • 0.25 cups heavy cream
  • 1 teaspoon vanilla extract
  • 1.5 cups chopped Reese's Peanut Butter Cups For frosting and decoration
  • Extra whole Reese's Peanut Butter Cups For garnish

Method
 

Preparation
  1. Preheat your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans or line them with parchment paper.
  2. In a large mixing bowl, whisk together the flour, sugar, cocoa powder, baking powder, baking soda, and salt.
  3. Add the eggs, milk, vegetable oil, and vanilla extract into the dry mixture. Beat on medium speed for about 2 minutes until smooth.
  4. Carefully stir in the boiling water. The batter will be thin.
  5. Divide the batter evenly between the prepared cake pans and gently tap each one to release air bubbles.
Baking
  1. Bake for 30 to 35 minutes, or until a toothpick inserted into the center comes out clean.
  2. Allow the cakes to cool in their pans for 10 minutes, then turn them out onto wire racks to cool completely.
Frosting & Assembly
  1. In a large bowl, beat together peanut butter and softened butter until creamy.
  2. Gradually add in the powdered sugar, mixing on low speed until well combined.
  3. Add heavy cream and vanilla extract, then beat on medium-high until light and fluffy.
  4. Once the cakes have cooled, place one layer on a serving plate and spread a layer of frosting over the top.
  5. Sprinkle half of the chopped Reese's Peanut Butter Cups over the frosting.
  6. Carefully place the second layer on top and frost the top and sides of the cake with the remaining frosting.
  7. Garnish with the remaining chopped Reese's Peanut Butter Cups, pressing them into the frosting.

Notes

For a more intense chocolate flavor, add instant coffee granules to the dry ingredients. To reduce sweetness, decrease powdered sugar in frosting and add more heavy cream.