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Homemade Marshmallow Frosting recipe – great for cakes and cupcakes! Just a few ingredients including marshmallow fluff, butter, vanilla, & powdered sugar make this icing a hit!

This marshmallow fluff frosting can be used to top vanilla cupcakes, chocolate cupcakes, or any flavor cupcake you like! You could even use it to make s’mores brownies with some crushed up graham crackers.

marshmallow frosting on top of a chocolate cupcake

No hassle, just quick & easy!

For the most recent cupcakes I made, I decided I wanted to use Marshmallow Frosting. I did a few google searches but found only ones that involved egg whites and decided I needed a quick and Easy Marshmallow Frosting.

I had remembered I saw one on Pinterest one day. It was from Just a Pinch. I usually modify all recipes, but this one was already nearly perfect—I just added a little vanilla. 🙂

It only required a small handful of ingredients, and the finished product was so tasty. It’s a really nice texture too—not too thin and “whipped”, but not too dense like some buttercream frostings. I’ve used it on multiple flavors of cupcakes already!!

beating marshmallow fluff and butter together with a hand mixer

Just 4 ingredients!

This recipe is so easy because it only uses 4 ingredients (and egg whites is NOT one of them!!):

  • butter (make sure it’s at room temperature)
  • marshmallow fluff
  • powdered sugar
  • vanilla extract (extract, not flavoring)

If you’re having a hard time finding the marshmallow fluff, check in the baking isle of your grocery store. The label might also say “jet puffed marshmallow creme”. This works the same! If you still don’t have any luck, Amazon is always on option. 😉

When you’re mixing the ingredients together, make sure the powdered sugar and butter are completely creamed together before adding anything else. There should be no visible clumps of powdered sugar.

Use a rubber spatula to scrape any stray clumps from the side of the bowl, and to mix in the fluff by hand (rather than using a beater/electric hand mixer).

Marshmallow fluff frosting on a spatula

Tips, tricks, and troubleshooting

How much this frosting will cover depends on how you use it. If you’re piping it on, or being really decorative, this recipe makes enough frosting to cover 12 cupcakes. If you are spreading it on with a knife, it will cover several more.

You can use it to frost a cake, however you might need to double the recipe for a 9×13 cake, or for a double layer 8 inch round cake.

I’ve had several readers ask if you can use a kitchen torch to brown this frosting (kind of like a toasted marshmallow). Although I have never tried, one reader said it does work if you use really high heat up close. If you’re too far away, the frosting will melt before it browns.

Make ahead and store? Because this recipe is more of a buttercream type frosting, and doesn’t have egg whites in it, you can easily make it in advance and store in the fridge for several days before using. As long as it is kept cool, it will stay in good condition.

You can even frost your cupcakes a day or two in advance, and keep in the fridge until you’re ready to serve.

If your frosting is too runny, you might need to add a bit more powdered sugar to stiffen it up. I wouldn’t add more than a couple tablespoons at a time, and then mix well to see how it affects the consistency.

Areas that are warm or humid might affect the consistency of your frosting as well. Put it in the fridge for a while to see if that does the trick.

marshmallow frosting on top of a cupcake

This recipe was soooo easy and was so yummy!! It’s definitely a new favorite, and I can’t wait to make it again.

For more delicious frosting recipes, check out:

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4.95 from 585 votes

Marshmallow Frosting Recipe

By: Lil’ Luna
Homemade Marshmallow Frosting recipe – yum! Few ingredients including marshmallow fluff, butter, vanilla, & powdered sugar make this a hit!
Servings: 12
Prep: 5 minutes
Total: 5 minutes

Ingredients 

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Instructions 

  • Beat butter and powdered sugar until fluffy and well mixed.
  • Mix in fluff and vanilla by hand and mix well.
  • Add to piping bag and pipe onto cupcakes.

Video

Nutrition

Calories: 79kcal, Carbohydrates: 12g, Fat: 3g, Saturated Fat: 2g, Cholesterol: 10mg, Sodium: 33mg, Sugar: 10g, Vitamin A: 120IU, Calcium: 1mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Course: Dessert
Cuisine: American
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About Kristyn

My name is Kristyn and I’m the mom of SIX stinkin’ cute kids and the wife to my smokin’ hot hubby, Lo. My mom’s maiden name is Luna, and I’m one of the many crafty “Lil’ Lunas” in the fam. On this site I like to share all things creative - from recipes to home decor to gifts and home decor ideas. Welcome!

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Recipe Rating




315 Comments

  1. jocilyn says:

    I want to make this frosting for my sons Bay Max bday cake. If I only have marshmallow creme would you recommend adding a egg white or two or does the creme work out okay?

  2. Kathy @ Living A Creative Life says:

    5 stars
    This is my new ‘favorite’ frosting. Thanks so much for sharing!
    I had a large container of marshmallow fluff and added much more than 7 oz., I think. So delicious!

    1. Lil' Luna says:

      Glad you liked it!! Thanks for stopping by. 😉

  3. Baylee says:

    how much does this make?

  4. sue says:

    I also was wondering if it should be refrigerated. It oozed slowly down the sides of my cupcakes.

  5. Teresa says:

    Does this frosting need to be refrigerated? I made a double batch and have a little left over. I want to frost more cupcakes tomorrow and am wondering. I love this frosting! I’ve used it twice now with great results. I used Creme one time and Fluff one time, and both worked great. A 10-year old girl at my daughter’s party today loved the frosting so much she asked if she could have another cupcake. 🙂

  6. Rhonda says:

    Kristyn this marshmallow frosting is awesome, I’ll definitely make it again !!!! I used it for brownies I wanted to decorate with Peeps & jelly beans for Easter and I don’t like sweet frosting and never frost my brownies. This worked out great and is very easy to make, not saving the other recipes I found that would take a bit more time.

  7. mandy says:

    I made this marshmallow icing according to the instructions with 1 cup of butter despite thinking it was way too much butter and unfortunately it was. The icing was not very good. I checked some other marshmallow recipies such as Kraft and they call for 1/4 cup of butter instead. Perhaps it is a misprint.

  8. Beverly says:

    Can you make this with dairy free “butter”? We use Earth Balance because my son is allergic to dairy and I’m trying to find a dairy free icing recipe that actually tastes good.

    1. Lil' Luna says:

      Unfortunately, I’ve never tried. If you do give it a try let me know how it goes so I can let others know. 🙂

    2. Joan Tuber says:

      Did you try the eArth Balance? If so, how did it taste? I was asked to make a birthday cake-dairy free and I was hoping to use a marshmallow frosting.
      Thanks,
      Joan

  9. Barbara says:

    Is this also good on a very humid day. I know I will love this. I am a marshmallow freak!

    1. Lil' Luna says:

      Unfortunately, I’ve never tried making it on a humid day. :/ I’d imagine it would be okay but may need a bit more powdered sugar to make it more stiff. 🙂