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Close up of a swirl of piped peanut butter frosting with a mini Reese's cup on top.

Peanut Butter Buttercream

Liz Mincin
An easy peanut frosting recipe. This quick peanut butter flavour buttercream is made with only three ingredients and will take minutes to whip up. Perfect for spreading or piping and an easy to adjust consistency.
5 from 1 vote
Prep Time 15 mins
Cook Time 0 mins
Course Dessert
Cuisine American
Servings 24 tablespoon
Calories 112 kcal


  • 2⅔ cups powdered sugar or icing sugar
  • ¾ cup unsalted butter softened at room temperature
  • ¼ cup peanut butter smooth peanut butter


  • Begin by beating the peanut butter and butter together in a stand mixer or large bowl.
  • Then, add the powdered sugar by sifting this into the bowl. This can be done in two additions, beating lightly between each. Continue beating on a low setting until the buttercream frosting is smooth (see note).


Your goal is not to whip the frosting as adding too much air can make it more difficult to spread (creating air pockets).
If you need to adjust the consistency, this can be easily done by adding more powdered sugar or adding a splash of milk. Adding powdered sugar will thicken the frosting and adding milk will thin it. Any additions should be done a small amount at a time and checking the consistency to avoid over adding excess ingredients.


Calories: 112kcalCarbohydrates: 12.2gProtein: 0.7gFat: 7.1gSaturated Fat: 3.9gCholesterol: 15mgSodium: 53mgPotassium: 19mgFiber: 0.2gSugar: 11.7gCalcium: 2mg
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