Marshmallow Frosting Recipe - CakeWhiz

Marshmallow Frosting Recipe

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Quick and easy marshmallow frosting recipe made with 4 simple ingredients: Butter, sugar, marshmallow fluff, vanilla. It’s rich, smooth, creamy, fluffy!

I made this fluffy marshmallow frosting a few years ago when my kiddo asked for a frosting with marshmallows. Using actual marshmallows was a pain. So, I used fluff and it worked really well and he loved it!

Use this marshmallow frosting for cupcakes, cakes and brownies as a topping or filling.

Keep in mind that this is not a toasted marshmallow frosting and you cannot use a torch on it because it will melt into a mess.

Fluffy Marshmallow Frosting Recipe: Marshmallow Icing

Ebooks by Cakewhiz

How to make marshmallow frosting/ marshmallow fluff frosting?

  1. Mix together butter and vanilla extract.
  2. Mix in powdered sugar.
  3. Mix in marshmallow fluff until creamy.
  4. Chill and pipe on cake/ cupcakes.

Marshmallow Fluff Frosting Recipe

Tips for marshmallow frosting recipe from scratch:

  • Use unsalted butter because salted butter makes the frosting very salty.
  • All ingredients should be at room temperature because they will blend together smoothly.
  • Vanilla extract can be replaced with any other extract of your choice.
  • If the frosting is too thin, add more powdered sugar (1/4 cup at a time) to thicken it up.
  • If the frosting is too thick, add a little milk (1 tsp at a time) to thin it out.
  • This frosting is SWEET and thus, it’s best paired with cake and cupcakes that are not too sweet.
  • The consistency of this frosting is different and not suitable for many decorating techniques, especially the intricate ones.
  • Don’t replace marshmallow fluff with actual marshmallows because the result was not the same and it  took longer to melt the marshmallows and then use them.
  • Chilling the frosting before piping makes it easier to handle and the frosting swirls hold their shape better.
  • Marshmallow fluff can be replaced with marshmallow cream to make marshmallow cream frosting/marshmallow frosting without eggs.
  • For vegan marshmallow frosting, use vegan fluff or cream.

Homemade Marshmallow Frosting Recipe

What cupcakes to pair with marshmallow icing?

How to Make Marshmallow Forsting with Marshmallow Fluff

Other frosting recipes:

Easy Marshmallow Frosting Recipe
5 from 5 votes

Easy Marshmallow Frosting

Prep Time
10 mins
Total Time
10 mins

Quick and easy marshmallow frosting recipe made with 4 simple ingredients: Butter, sugar, marshmallow fluff, Vanilla. It's rich, smooth, creamy, fluffy! 

Servings: 6 cups
Course: Dessert
Cuisine: American
Calories: 771 kcal
Author: CakeWhiz


  • 1 cup Butter Unsalted, Room temperature
  • 1 tsp Vanilla extract
  • 3 cups Powdered sugar
  • 1 jar Marshmallow fluff 13 oz jar


  1. Add butter and vanilla extract in a mixing bowl and mix until smooth. 

  2. Add powdered sugar (1 cup at a time) and mix until creamy. 

  3. Add marshmallow fluff until smooth and fluffy.  

  4. Chill for 30 minutes to make frosting easier to pipe (optional) and frost your cupcakes with Tip 1M. Enjoy!

Recipe Video

Recipe Notes

  • Read all my tips above.
  • Leftovers can be stored in a sealed container in the fridge for up 1 week. 
Nutrition Facts
Easy Marshmallow Frosting
Amount Per Serving
Calories 771 Calories from Fat 270
% Daily Value*
Fat 30g46%
Saturated Fat 19g95%
Cholesterol 81mg27%
Sodium 272mg11%
Potassium 9mg0%
Carbohydrates 129g43%
Sugar 119g132%
Vitamin A 945IU19%
Calcium 9mg1%
Iron 0.1mg1%
* Percent Daily Values are based on a 2000 calorie diet.

Until next time, tata my lovelies!

13 comments on “Marshmallow Frosting Recipe”

  1. Hi for this icing is it real butter or oleo

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