Reese’s Peanut Butter Cup Cake

I have seen a few of these cakes lately and decided we better try one! The whole family is Reese’s Peanut Butter Cup lovers!  We can polish off a bag in no time.  So it seemed fitting to make this delicious Reese’s Peanut Butter cup cake.  This cake is loaded and will feed a crowd!

Serves: 10

Reese's Peanut Butter Cup Cake

This delicious Reese's cake is rich but SO good!

20 minPrep Time

30 minCook Time

50 minTotal Time

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  • 1 (15.25 ounce) package Devil's food cake mix
  • 1 1/4 cups water
  • 1/2 cup vegetable oil
  • 3 eggs
  • Peanut Butter Buttercream Frosting
  • 1 cup powdered sugar
  • 1 cup creamy peanut butter
  • 5 Tablespoons butter (room temperature)
  • 3/4 teaspoon vanilla
  • 1/4 teaspoon salt
  • 1/3 cup heavy cream
  • 1 (20 ounce) package Reese's mini peanut butter cups (divided)


  1. Prepare cake as directed on box using two 9" cake pans.  Let cool.
  2. While cake is cooking, unwrap the mini Reese's peanut butter cups.
  3. With half of the peanut butter cups, cut them into quarters. Set aside.
  4. With the other half of the peanut butter cups, cut in half. Set aside.
  5. Peanut Butter Buttercream Frosting:
  6. In a large mixing bowl combine the powdered sugar, peanut butter, butter, vanilla, and salt in a bowl.
  7. Mix with an electric mixer on medium-low speed until creamy, scraping down the bowl with a rubber spatula as you work.
  8. Add the heavy cream and beat on high speed until the mixture is light and smooth.
  9. Cake Assembly:
  10. To assemble the cake, place one cake layer on the serving plate.
  11. Spread 1/3 of the peanut butter frosting on top of the cake layer. 
  12. Sprinkle with 1/2 of the quartered peanut butter cups
  13. Place the second cake layer on top of the frosting. Frost the top and outside of the cake with remaining peanut butter frosting.
  14. Spread out the other half of the quartered cups on top of the cake.
  15. With the halved peanut butter cups, decorate the top edge of the cake and if you have extra you could decorate around the bottom edge of the cake.

Equipment needed for this recipe:


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