Easy Marshmallow Frosting

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:

Create your Lil’ Luna account now!
Sign Up to Save Recipes

Marshmallow Frosting Recipe

4.62 from 57 votes
Homemade Marshmallow Frosting recipe - yum! Few ingredients including marshmallow fluff, butter, vanilla, & powdered sugar make this a hit!
Course Dessert
Cuisine American
Prep Time 5 minutes
Total Time 5 minutes
Servings 12
Calories 79 kcal
Author Lil' Luna

Ingredients

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.

Like this Recipe?

Pin it now!

Pin It NowPin It Now

Shop Online

Lil' Luna Products

See All Products

Want more inspiration?

More Recipes You'll Love

Strawberry Shortcake Kabobs

Total Time: 40 minutes
4 from 1 vote

Better than Anything Cake

Total Time: 2 hours 35 minutes
5 from 4 votes

New York Crumb Cake

Total Time: 45 minutes
5 from 8 votes

Peanut Butter Cupcakes

Total Time: 30 minutes
5 from 12 votes

Lemon Buttermilk Cake

Total Time: 30 minutes
5 from 5 votes

Frozen Strawberry Dessert

Total Time: 6 hours 10 minutes
5 from 8 votes

About the Author

Kristyn Merkley

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!

Join the Conversation

Rate and Comment

Your email address will not be published. Required fields are marked *

Recipe Rating




Comments:

  1. I haven’t made this YET but I am so excited to use it for my daughters 13th “fire pit and smore’s” themed party!
    My question is, do you use salted of unsalted butter?

    1. It should hold up pretty well in between layers of cake since it’s more of a buttercream type frosting. You might need to double the recipe for a 9×13 cake, or for a double layer 8 inch round cake though. Hope this helps!

  2. Can I torch/brown the icing for ‘roasted marshmallow’ flavour? Or will it just melt due to the butter?

    1. I have never tried to torch the frosting but 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. Hope this helps!

    2. 5 stars
      Hi! I’ve made this frosting in the past and it was great, thank you. Can this frosting hold a food coloring? Thank you in advance

    1. You can easily make the frosting 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. Hope this helps!

  3. 5 stars
    This frosting is a keeper! I made chocolate cupcakes then topped them with this frosting, added crushed graham crackers and a piece of Hershey’s bar!

    1. That sounds like the perfect dessert to use the marshmallow frosting with… especially for summer! Thanks for sharing!

  4. 5 stars
    I made this frosting this past weekend, for an ice cream cake. I was looking for something to compliment the chocolate peanut butter ice cream I was using, and this icing did work nicely. Everyone who had some of this ice cream cake said the icing was delicious, and I agree! It was quite sweet but very marshmallow-y, which is what I was looking for!

    However, just as a warning from what I have learned from my experience: this frosting (or any other marshmallow fluff-based recipe probably) does NOT play nicely being spread onto a cold surface! Trying to spread this icing over the ice cream cake was a disaster, as it would start hardening almost immediately and was just too sticky to handle. It sort of stuck together in globs and would slowly run off the sides of the cake. But all of this was more my fault than the icing’s, and I would ABSOLUTELY make this icing again for regular cakes or other baked goods, because it really was delicious! I feel like it would go great with some not-super-sweet dark chocolate cupcakes, because the icing itself is very sweet but I know there are places where that could be balanced out!

    Full disclosure, I will say I did end up basically doubling the marshmallow fluff and only used a single amount of the powdered sugar, butter, and vanilla extract. Marshmallow fluff is just SO sweet on its own that after tasting the icing as a single batch, I felt it needed more marshmallow flavor and that’s why I ended up doubling the marshmallow fluff but left the rest of the measurements the same. That may have played into my consistency problems when it came to spread it over the ice cream cake, but I do honestly believe the source of the problems was just with how marshmallow fluff reacts to cold surfaces.

    Anyways thanks for sharing this recipe, I am looking forward for an opportunity to use it again soon!

    1. Thanks for your feedback. Sorry to hear you didn’t have a great experience with the frosting.

    1. Yes, absolutely!! If your frosting does end up being 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. But that’s only if it seems runny. Should be just fine! 🙂

  5. 4 stars
    Made this frosting this past weekend to go on peanut butter cupcakes to mimic a New England snack called a fluffernutter. It was easy to make and it’s a tasty frosting, just wished it tasted a little more marshmallowy (not sure that’s a word). I’d make it again.

    1. Thanks for your feedback. I have heard of fluffernutters before! What a fun idea to add this frosting to recreate that.

    1. You’re welcome! I’m glad you found it was fast and easy too. One of my favorite frostings!

See More Comments