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piping swirl of marshmallow icing onto cupcakes

Scrumptious Marshmallow Buttercream Frosting

Servings 12 servings

Ingredients
  

  • 1 stick (1/2 cup) unsalted butter, room temperature
  • 1 1/2 c. powdered confectioners sugar, sifted
  • 1/2 c. marshmallow creme (also known as marshmallow fluff)
  • 1-4 tbsp. milk

Instructions
 

  • In bowl of stand mixer, whip butter with whisk attachment until light and fluffy, 3-4 minutes.
  • Sift powdered sugar. Add to butter, 1/2 cup at a time. Mix in slowly then increase speed to high to whip.
  • Measure 1/2 cup marshmallow creme and stir on medium until combined and thick.
  • If frosting is too thick, add milk 1 tablespoon at a time. If it's too thin, add powdered sugar, 1/4 cup at a time until frosting reaches desired consistency.

Notes

Note: Frosting may be just a bit softer than a typical stiff buttercream, due to marshmallow creme.  I recommend piping frosting shortly before serving, in order to preserve the look and stiffness of the frosting.