Marshmallow Frosting

Marshmallow Frosting, an easy homemade frosting recipe using marshmallow fluff. Ready in just minutes, this delicious fluffy frosting is great on cakes, cupcakes, cookies, brownies, and more!

This homemade Marshmallow Frosting is so simple and comes together in no time! It’s delicious on a wide range of treats as-is or add other flavorings like chocolate, chocolate, strawberry, or even peanut butter for a whole new frosting!

I’ve used this frosting for a wide range of recipes including these Dipped S’mores Cupcakes and this S’mores Cake. I thought it was time to give this easy frosting a post all to itself.

The frosting itself is quite versatile and would be great on vanilla or chocolate cake (like this One Bowl Chocolate Cake), cupcakes, cookies, brownies, and just about any other treat. You could even just spoon it on graham crackers and top with some chocolate chips.

This Marshmallow Frosting only takes about 5 minutes or less to make thanks to marshmallow fluff (if you have no idea what I’m talking about -> what is marshmallow fluff).

I would not recommend substituting regular marshmallows or melted marshmallows in this recipe for the fluff. They will not hold up like marshmallow fluff.

As I said above, the frosting is great as-is, or you can add your favorite flavoring, extracts, or mix-ins such as toasted coconut, chocolate chips or chopped chocolate, chopped fresh strawberries or strawberry extract, or even peanut butter powder. The possibilities are endless.

The frosting is a bit on the sweet side, so you might not want to add anything that is really sweet, but personal preference.

(Full printable recipe card is at bottom of post.)

Marshmallow Frosting Ingredients

• Marshmallow Fluff – Or sometimes called Marshmallow Cream or Marshmallow Creme. Not to be confused with regular (or mini) marshmallows.
• Butter – Make sure it’s fully softened before starting.
• Vanilla extract – Or you could try other extracts for a different flavor.
• Salt
• Confectioners’ sugar (powdered sugar) – Do not use granulated sugar.
• Milk – Or you could use a milk substitute like coconut milk or almond milk.

How to Make Marshmallow Frosting

1. Beat together marshmallow fluff and butter in large mixing bowl with electric mixer on medium speed until well combined.
2. Then beat in vanilla and salt. Beat in confectioners’ sugar until well combined.
3. If needed, beat in milk a little at a time until frosting just comes together.

Uses for Marshmallow Frosting

• Use as a topping for your favorite cake, cupcakes, brownies, cookies, etc. Would be great for any special occasion treat even a birthday cake!
• Add your favorite flavors such as extracts or mix-ins for even more flavor.
• Spread on graham crackers with some chocolate chips for an easy s’mores inspired treat.
• Use as a dip for graham crackers, fruit, etc.

Quick Tips for Best Results

• Do not substitute marshmallows or melted marshmallows for the marshmallow fluff.
• Make sure the butter is fully softened before starting so that your frosting won’t have butter lumps.
• Add the milk just a little at a time and only if needed for everything to come together. You might not even need any.

Marshmallow Frosting FAQ

How should I store Marshmallow Frosting?
You can store this frosting at room temperature in a well-sealed container.

Can I freeze Marshmallow Frosting?
Hmmm, I haven’t tried it but think the consistency might change over time a bit but should be ok.

How long will the Marshmallow Frosting last?
It will last at least a few days at room temperature.

Substitutions?
Do NOT use regular marshmallows or melted marshmallows for the marshmallow fluff. Instead of vanilla, you could use your favorite flavoring or extract.

Can I use low-fat ingredients?
Instead of butter, you could try a lower fat butter substitute or margarine but I have not tried it.

What else can I add to this recipe?
Add your favorite mix-ins like chocolate chips or chopped chocolate, chopped nuts, coconut or toasted coconut, chopped graham crackers, or even cookie crumbs. Fresh chopped fruit or fruit extracts (like strawberry, raspberry, etc.) would also be delicious. Or you could even try adding a little peanut butter or peanut butter powder. So many possibilities!

Can I make this vegan/vegetarian/low carb/gluten-free?
Here are some suggestions, but I can’t guarantee results. Be sure as always to check particular brands and ingredients if you’re following a specific diet or have diet restrictions or allergies.

Vegan – This would be a tough one to make vegan. Marshmallow Fluff usually contains eggs.

Vegetarian – It’s vegetarian, but check your marshmallow fluff just to be sure.

Low-Carb – There’s a lot of sugar in this recipe and would be difficult to make low carb.

Gluten-Free – It’s gluten-free but check brands to be sure.

Other Frosting Recipes You May Enjoy

• Cannoli Frosting (Snappy Gourmet) – Inspired by the popular Italian treat.
• Peanut Butter Frosting (Snappy Gourmet) – Great with chocolate cakes, cookies, and brownies.
• Cream Cheese Frosting (Snappy Gourmet) – Delicious on banana cakes, pumpkin cakes, and more.

Hope you enjoy this quick and delicious Marshmallow Frosting. Tell me in the comments what you used it on!

You might also like these homemade S’mores Bars!