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3 Ingredient Peanut Butter Frosting on top of a chocolate cupcake piped on
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4.58 from 94 votes

3 Ingredient Peanut Butter Frosting

An easy to put together homemade peanut butter frosting with just 3 ingredients!
Prep Time10 minutes
Total Time10 minutes
Course: Desserts
Cuisine: American
Servings: 18 servings
Calories: 247kcal
Author: Samantha Erb

Ingredients

  • 1 cup unsalted butter softened (2 sticks)
  • 3/4 cup creamy peanut butter*
  • 2 to 3 cups powdered sugar

Optional

  • 1 to 2 tablespoons heavy cream
  • 1 teaspoon vanilla extract

Instructions

  • In a medium mixing bowl, beat butter and peanut butter for 60-90 seconds, until fluffy. Scrape the sides of the bowl.
  • Gradually mix in the powdered sugar, mixing for 1-2 minutes, and adding more to suit your desired sweetness level.
  • If using, add vanilla and mix well. For a fluffier frosting, add heavy cream 1 tablespoon at a time, mixing for 2-3 minutes until light and fluffy.
  • Pipe or use as intended on cupcakes, cake, and more.

Video

Notes

* use store bought peanut butter -- not organic -- to avoid any oil and peanut separation and graininess in the frosting
Tops 18-24 cupcakes, a 13 by 9-inch sheet cake, or a full 2 layer 8-inch round cake.

Nutrition

Serving: 1 | Calories: 247kcal | Carbohydrates: 37g | Fat: 11g | Saturated Fat: 7g | Polyunsaturated Fat: 4g | Cholesterol: 29mg | Sodium: 9mg | Sugar: 36g