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closeup of a wire rack with several chocolate cupcakes topped with white marshmallow frosting

Marshmallow Frosting

Marshmallow frosting is made with the flavor of classic marshmallows but the fluffy texture of a whipped, glossy, meringue-type frosting that is perfect for piping and spreading on all your favorite cakes and cupcakes!
Course Dessert
Cuisine American
Prep Time 10 minutes
Total Time 10 minutes
Servings 12 servings
Calories 44kcal


  • ½ cup white sugar
  • 2 large egg whites
  • ¼ cup marshmallow fluff
  • 1 teaspoon vanilla extract


  • Add water to a small pot of water and heat it to simmer over medium heat.
  • In a glass bowl, add the egg white and sugar and place the bowl over the simmering water.
  • Whisk constantly until the sugar dissolves and mixture reached 160° F on a food or candy thermometer (it will take about 5 minutes.)
  • Place the egg white mixture in a mixing bowl (or the bowl of a stand mixer with the paddle attachment) and beat on medium speed until stiff peaks form. (it will take about 5 more minutes).
  • Slowly add the marshmallow fluff and vanilla extract and beat on high speed until the stiff peaks form again (approximately 3 minutes).
  • For Cupcakes: add the frosting to a piping bag with whatever tip you'd like and add the frosting to the cupcakes.
  • For Cakes: Spread on the side and top of the cake.
  • Garnish with mini marshmallows and/or chocolate sprinkles.


Serving: 2tablespoon | Calories: 44kcal | Carbohydrates: 11g | Protein: 1g | Fat: 1g | Sodium: 9mg | Potassium: 10mg | Sugar: 10g | Calcium: 1mg | Iron: 1mg