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Light and fluffy peanut butter frosting swirled smoothly on a cake or cupcake.

Fluffy Peanut Butter Frosting Recipe (Light & Creamy)

A velvety peanut butter frosting whipped to a light and airy consistency, perfect for spreading or piping onto cakes and cupcakes.
Prep Time 15 minutes
Total Time 15 minutes
Course Dessert, Frosting / Topping
Cuisine American Baking
Servings 16 cupcakes or a 9-inch cake
Calories 220 kcal

Equipment

  • Mixing bowl
  • Electric mixer or stand mixer
  • Spatula

Ingredients
  

  • 1 cup unsalted butter, softened
  • 1 cup creamy peanut butter (not natural style)
  • 3–4 cups powdered sugar, sifted
  • 2–3 tbsp milk or heavy cream
  • 1 tsp vanilla extract
  • Pinch of salt

Instructions
 

  • Whip butter: Beat softened butter in a mixing bowl until light and fluffy.
  • Add sugar gradually: Add powdered sugar one cup at a time, beating well after each addition.
  • Incorporate peanut butter: Mix in creamy peanut butter until smooth and evenly blended.
  • Adjust consistency: Add milk or cream, one tablespoon at a time, until frosting is spreadable or pipeable.
  • Flavor boost: Stir in vanilla extract and a pinch of salt.
  • Beat until fluffy: Continue beating for 2–3 minutes until frosting is light and airy.
  • Expert Tip: Chill frosting slightly before piping for neat, professional designs.

Notes

  • Use room-temperature butter and peanut butter for smooth blending.
  • Avoid natural peanut butter—it can separate and affect texture.
  • For a lighter version, use powdered peanut butter and reduce sugar.
  • Store frosting in the fridge for up to 5 days; re-whip before use.
  • Freeze for up to 2 months; thaw in fridge and beat again before spreading.
Keyword Cake Frosting, cupcake topping, fluffy frosting, nutty dessert topping, Peanut butter frosting