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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




316 Comments

  1. Caroline says:

    Do you use unsalted butter?

    1. Lil' Luna says:

      I try to use unsalted butter in all my desserts, but will use salted if it’s the only thing I have on hand. 🙂

  2. Ammie Ortiz says:

    Thank you SO MUCH, I’ve been looking for a recipe and this is PERFECT!!!! THANKS!

    1. Lil' Luna says:

      No problem! Thanks for stopping by. 🙂

      1. Jellybean says:

        Can I add flavorings like lemon juice? Thanks

      2. Lil' Luna says:

        Sure you can! I haven’t tried, since I love how it is, but that is a great idea! Let me know what you think!

  3. Diana says:

    How many cupcakes can you frost with it?

    1. Lil' Luna says:

      I was able to frost about 1 dozen when I piped it on. It could probably frost 2 dozen if you just spread it on with a knife. 🙂

  4. Claire says:

    Hello,

    Thanks for the great recipe! I’m wondering if you meant to say a HALF cup of butter? It tasted like straight butter, so I kept adding sugar and fluff and eventually milk, but nothing could make it taste better. Am I the only one who thought it was so buttery? It looked so good, and I wanted to like it. Any advice?

    1. Jellybean says:

      5 stars
      I used half butter and half Crisco to cut down on sweetness and make it stand up better for outdoor wedding . Also added a little less marshmallow. It came out great!! This may solve some of the problems people have experienced

      1. Lil' Luna says:

        Thanks for sharing that info!! Also, thank you for trying this recipe!!

  5. Alejandra says:

    Well hello there 🙂 I would like to know how long my this be stored for ?

    1. Lil' Luna says:

      I’ve actually never tried storing it and have made it right before using it. I’d imagine it would be good in a closed container in the fridge for at least a week or two.

  6. Sam says:

    This is really good and really easy. Those who are saying that it is runny are definitely doing something wrong, and if it’s too thick try mixing it some more. My 14 year old daughter made it with no problem!

    1. Lil' Luna says:

      Thanks, Sam! Glad it worked for you. I’ve never had a problem either and glad your 14 year old was able to make it. 🙂

      1. D says:

        What Brand of Marshmallow creme do you use? I think that may be the issue some people are having with it being too thin and I want mine to turn out right.

      2. Lil'Luna Team says:

        I just use good ol’ Jet Puffed!

  7. Shai says:

    Sorry phone typo… Not didnt*** you did do something wrong

  8. Shai says:

    Mine came out great! Fantastic! For those that said theirs came out runny, you didn’t something wrong. Check your ingredients and measurements again. Make sure you are using fluff.

    1. Lil' Luna says:

      Thanks, Shai! So glad yours turned out. We love it too and will be making it again today. 🙂

  9. Le says:

    Can you add food coloring?

    1. Lil' Luna says:

      Yes, you can! I would just make sure you don’t add too much so it the frosting stays a more thick consistency. 🙂