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loaded peanut butter cup peanut butter blondies with peanut butter frosting

Loaded Peanut Butter Cup Peanut Butter Blondies with Peanut Butter Frosting

Dense and moist, Loaded Peanut Butter Cup Peanut Butter Blondies have a triple dose of peanut butter. There's peanut butter in the cake, in the frosting, and peanut butter cups in the cake.
Course Dessert
Cuisine American/Southern
Keyword blondies, peanut butter
Prep Time 15 minutes
Cook Time 18 minutes
Total Time 33 minutes
Servings 16 servings
Calories 554kcal
Author Paula Jones



  • 2 cups sugar
  • 2 cups all-purpose flour
  • 2 large eggs at room temperature
  • 1 teaspoon baking soda
  • 1 cup plain Greek yogurt
  • 2/3 cup creamy peanut butter
  • 1 cup butter
  • 1 cup water
  • 2 cups peanut butter cups


  • 1/2 cup butter at room temperature
  • 2/3 cup creamy peanut butter
  • 6 tablespoon heavy whipping cream
  • 2 and ½ cups confectioner's sugar sifted
  • 1 teaspoon vanilla



  • Combine sugar, baking soda, and flour in a bowl.
  • In another bowl, whisk eggs then add sour cream and whisk to combine.
  • In a small saucepan, combine peanut butter, butter, and water. Bring to a boil.
  • Stir peanut butter mixture into flour mixture. Stir to combine.
  • Add egg mixture to flour mixture and stir to combine.
  • Pour batter into a 13x18 inch sheet pan (or two 9x13 inch cake pans) that has been sprayed with non-stick spray
  • Evenly sprinkle chopped peanut butter cups over batter.
  • Bake for 18 to 20 minutes or until done. Cake is done when a wooden pick inserted in the center of the cake comes out clean or with dry crumbs.


  • Combine butter, peanut butter, and milk in a saucepan. Bring to a boil. Stir constantly.
  • Add powdered sugar and whisk to combine.
  • Remove from heat and stir in vanilla.
  • While cake is hot and frosting is hot, pour frosting over cake.
  • Serve warm or allow to cool.


Recipe from Paula @CallMePMc.com All images and content are copyright protected. Please do not use my images without prior permission that includes copying the ingredient list or entire recipe and posting in the comments on Pinterest for Facebook. If you want to share this recipe, please simply link back to this post for the recipe.


Calories: 554kcal | Carbohydrates: 62g | Protein: 10g | Fat: 32g | Saturated Fat: 15g | Cholesterol: 81mg | Sodium: 345mg | Potassium: 199mg | Fiber: 2g | Sugar: 47g | Vitamin A: 653IU | Calcium: 40mg | Iron: 1mg