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Chocolate Peanut Butter Buttercream

Creamy, chocolatey peanut butter buttercream frosting.  Perfect for topping your favorite chocolate or peanut butter dessert.
Course Dessert
Keyword frosting
Servings 1 9x13" pan of brownies
Author Heather


  • 1/2 cup salted butter softened
  • 1/2 cup creamy peanut butter don't use natural
  • 1 teaspoon pure vanilla extract
  • 1/2 cup cocoa powder
  • 4 cups powdered sugar
  • 1/2 cup heavy cream
  • 1/4 cup water for thinning, may use more


  • If using a stand mixer, fit with paddle attachment.
  • Cream together butter and peanut butter until well combined and fluffy.
  • Drizzle in vanilla extract.
  • With the mixer on it's slowest possible speed, SLOWLY add in cocoa powder and powdered sugar.  The mixture is going to get SUPER thick.  Drizzle in some water (2-3 tablespoons) to keep everything smooth
  • Add in heavy cream and beat on high speed for a minute or two.  This whips up the heavy cream and gives the frosting a little more "fluff"
  • If the frosting is still to thick, add in more water-1 tablespoon at a time, until the desired consistency is reached.  I like a really spreadable frosting so I used the whole 1/4 cup of water but if you are planning to pipe anything with it, you don't want to add as much water.