Homemade Marshmallow Fluff

Never run out of creamy marshmallow fluff again with this simple recipe of whipped egg whites, corn syrup, cream of tartar, powdered sugar, and vanilla.

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About Homemade Marshmallow Fluff

Easy to make and much more cost-effective than the store-bought version, this delicious homemade marshmallow fluff is great to have on hand for all types of desserts and dips!

What’s in marshmallow fluff?

To make your own batch of deliciously sweet marshmallow fluff, you’ll need the following ingredients:

• Egg whites – The key ingredient that creates the light and airy fluffiness that marshmallows are known for. The egg whites are whipped at high speed, stretching the protein strands and incorporating air.
• Cream of tartar – An acid used to stabilize the egg whites as they’re being whipped. You can substitute this for salt, but the final texture may be looser (like marshmallow creme) as opposed to marshmallow fluff (which tends to be firmer.)
• Light corn syrup, powdered sugar, and vanilla extract – Assists with texture, sweetness, and flavor.

Can you use dried or store-bought egg whites?

Yes, it should be fine to use dried or store-bought egg whites. Just be sure you follow the instructions or measurement recommendations on the package.

How can you use marshmallow fluff?

This recipe makes about six full cups of marshmallow fluff, and there are tons of different ways you can use it, such as:

• Usable in most recipes that call for marshmallow fluff, such as fudge or mousse. NOTE: If the fluff is not heated or baked, be sure to store what you’ve made in the refrigerator.
• As a simple dessert dip, served with fruit or cookies.
• A classic peanut butter and fluff sandwich.
• A topping for all types of desserts, from ice cream to pies to cookies.
• A topping for hot drinks, like coffee or hot chocolate.
• Making s’mores without heat.
• A marshmallow dip for sweet potato fries.
• Fun recipes like fluffernutter puppy chow, fluffy s’mores dip, or orange creamsicle marshmallow fudge.

How should this be stored?

Due to the egg whites, this fluff spread should be stored in a sealed container in the refrigerator until ready to use.

How long is marshmallow fluff good for?

Once prepared, marshmallow fluff can be stored in a sealed container in the refrigerator for up to two weeks.

Can you freeze marshmallow fluff?

Yes, you totally can!

Once prepared, marshmallow fluff can be stored in a sealed container or freezer bag for up to three months.

NOTE: Due to the extremely high sugar content, marshmallow fluff may not freeze completely solid, remaining somewhat soft and pliable. This means that you can easily remove individual servings (or even pre-cut the fluff into serving-sized portions) as you need it.

Notes & tips for homemade marshmallow fluff

• Before getting started, make sure all of your equipment that will come in contact with the ingredients (bowls, beater, etc) are free of grease and moisture.
• This homemade fluff can almost always be used in place of the store-bought version for any recipe that calls for it. However, if the recipe is not baked or tempered with heat, the final product should be stored in the refrigerator.
• If you’d like a softer, more spreadable texture, use salt in place of the cream of tartar. This will essentially change the recipe to something more like marshmallow cream than marshmallow fluff.
• If the marshmallow fluff feels too thick, you can add a small amount of hot water (a teaspoon or less) and mix with a fork until combined.
• Like the label that’s used in these photos? You can create the same one by using an Avery sticker and this PDF with the design.

More delicious sauces and spreads

How to make marshmallow fluff

This next part is only a photo tutorial of the recipe steps. If you’re looking for the full recipe measurements and instructions, scroll down to Recipe Details.

Step 1 – Using a stand mixer (or hand mixer + large bowl), mix together the following ingredients until thick and fluffy: egg whites, corn syrup, and cream of tartar.

Step 2 – Keeping the mixer speed on high, thoroughly incorporate the powdered sugar and vanilla.

Step 3 – Serve and enjoy!