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Peanut Butter Marshmallow Buttercream Frosting in bowl

The Best Peanut Butter Marshmallow Buttercream Frosting Recipe

This extra fluffy peanut buttermarshmallow buttercream combines creamy peanut butter with marshmallow cream to create an impossibly light, cloud-like frosting that pipes beautifully and tastes even better.
Prep Time 5 minutes
Cook Time 0 minutes
Mixing Time 5 minutes
Total Time 10 minutes
Serving Size 3 Cups

Ingredients

  • ½ cup salted butter
  • 1 cup marshmallow cream
  • 3 cups powdered sugar
  • 1 tsp vanilla
  • ½ cup natural creamy peanut butter
  • 3 tbsp coconut cream or regular whipping cream

Instructions

  • Start with room temperature butter and beat until creamy, about 2 minutes. The butter should be soft enough that you can easily leave an indent with your finger.
    ½ cup salted butter
    room temp butter in bowl for peanut butter marshmallow buttercream
  • Add marshmallow cream, powdered sugar, natural peanut butter and vanilla extract and mix until smooth.
    1 cup marshmallow cream
    marshmallow cream, peanut butter, icing sugar added to mixer for peanut butter marshmalllow buttercream
  • Finally, add the coconut or regular whipping cream and beat for an additional 3-5 minutes until light and airy.
    3 tbsp coconut cream or regular whipping cream
    peanut butter marshmallow buttercream frsoting

Video

Notes

Pro Tips for Perfect Buttercream
  • Temperature matters! All ingredients should be at room temperature
  • Don't skip the extended beating time - it creates that fluffy texture
  • Use natural peanut butter for best flavor (avoid ones with added oils)
  • If too thick, add coconut cream 1 teaspoon at a time
  • If too thin, add powdered sugar 1 tablespoon at a time
  • Beat on medium speed to avoid incorporating too much air