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Marshmallow Frosting is one of our favorite easy frostings when we want something sweet, fluffy, and fun for cupcakes. It has that creamy marshmallow flavor from Marshmallow Fluff, plus butter, powdered sugar, and vanilla to make it smooth and pipeable.
We love using this on chocolate cupcakes, vanilla cupcakes, s’mores desserts and birthday treats. It’s simple to mix together, easy to pipe, and gives any dessert that sweet marshmallow finish kids and adults love.
We’ve made this frosting countless times because it is fast, dependable, and uses ingredients we often have on hand. If you love this recipe, be sure to try Chocolate Buttercream Frosting, Cinnamon Cream Cheese Frosting, Vanilla Buttercream Frosting, and Sugar Cookie Frosting too.
Why you’ll love it + Why it works:
- Only Four Ingredients: This frosting comes together with simple ingredients you may already have in your kitchen.
- Ready in Minutes: It takes just a few minutes to mix up, making it perfect for busy baking days.
- Perfect for Piping: The texture is smooth and fluffy, making it great for decorating cupcakes and cakes.
- Balanced Sweetness: Butter helps balance the sweetness for a frosting that is rich without being overwhelming.
Marshmallow Frosting Ingredients
- Butter (½ cup, room temperature): Creates a rich, creamy base and helps give the frosting structure. Be sure the butter is softened so it mixes smoothly.
- Marshmallow Fluff (7 ounces): Adds the signature marshmallow flavor and creates the light, fluffy texture that makes this frosting so good.
- Powdered Sugar (1 cup): Sweetens the frosting while helping it hold its shape for spreading and piping.
- Vanilla Extract (1 teaspoon): Adds warm flavor and enhances the sweetness of the marshmallow.
How to Make Easy Marshmallow Frosting
COMBINE. Beat butter and powdered sugar until fluffy and well mixed. Mix in fluff and vanilla by hand and mix well.
PIPE. Add to a piping bag and pipe onto cupcakes.
Kristyn’s Recipe Tips
- Let the butter come fully to room temperature for the smoothest frosting.
- Sift the powdered sugar if it has lumps to ensure a silky texture.
- Avoid overmixing after adding the Marshmallow Fluff to help maintain a light, fluffy consistency.
- If the frosting feels too soft for piping, chill it for 15 to 20 minutes before decorating.
Marshmallow Frosting Recipe
Video
Ingredients
- ½ cup butter, room temperature
- 7 ounces Marshmallow Fluff
- 1 cup powdered sugar
- 1 teaspoon vanilla extract
Instructions
- Beat butter and powdered sugar until fluffy and well mixed.
- Mix in fluff and vanilla by hand and mix well.
- If the frosting feels too soft for piping, chill it for 15 to 20 minutes before decorating.
- Then add frosting to piping bag and pipe onto cupcakes.
Notes
- Let the butter come fully to room temperature for the smoothest frosting.
- Sift the powdered sugar if it has lumps to ensure a silky texture.
- Avoid overmixing after adding the Marshmallow Fluff to help maintain a light, fluffy consistency.
- If the frosting feels too soft for piping, chill it for 15 to 20 minutes before decorating.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
Recipe FAQ
Store leftover frosting in an airtight container in the refrigerator for up to 5 days. Freeze the frosting in a freezer-safe container for up to 2 months. Thaw overnight in the refrigerator and stir before using.
Make it in advance and store it 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.
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This recipe was first shared in August, 2012.
I loved it! Thank you for sharing 🙂 it has the best flavor and is so extremely simple.
Glad to share! I am so glad you liked it! Thank you!
How do you get marshmallow fluff
You should be able to find it on your grocery store…in the baking aisle, near marshmallows 🙂 Hope you find it!
The recipe says vanilla, is the vanilla “extract” or vanilla “flavoring”?
Also do you think this would work on a cake?
Vanilla extract & yes, I think it would be good on cake. I haven’t tried, but it’s too good 🙂
Can this marshmallow frosting be torched? Or does it melt due to the butter?
Hmm…I haven’t tried??
Will this hold if I put it on my cupcake, put it in the fridge, and eat it the day after?
It should 🙂
This recipe is great! Do you know if I can use it as filling for my cupcake?
I haven’t tried, but I bet it would be good!
Hey, I was wondering if I could make this and then leave it over night and frost the cupcakes tomorrow?
That should be ok 🙂 I haven’t tried doing it that way, but I don’t see why not 🙂
That marshmello frosting looks good
Thanks!! It is so good 🙂 Hope you try it!
could you flavor this icing, i need to do a lemon cake and love this frosting but worried i may need more lemon
That is a good question! I have not tried. One way to find out 😉
My birthday is Sunday. I decided if I could find a Marshmallow Icing recipe, I am going to make myself a cake. I have very fond memory of baby sitting as a young teenager and the mother of the house would make this awesome cake with marshmallow icing. It was to die for. I could eat the whole thing while there, but of course never wanted to be a hog of course. So thanks for the recipe. 🙂
LOL!! I hope this tastes just as good!! Happy belated birthday!!