Marshmallow Buttercream Frosting Recipe
Introduction
Marshmallow Buttercream Frosting is a light, fluffy, and sweet topping that’s perfect for cakes and cupcakes. Its smooth texture and delicate almond flavor make it a delightful twist on traditional buttercream.

Ingredients
- 1 cup butter (softened)
- 4 cups confectioners sugar
- 1/2 teaspoon almond extract
- 13 ounces homemade marshmallow fluff
Instructions
- Step 1: Place your softened butter in the bowl of your mixer and cream it until smooth.
- Step 2: Slowly add the confectioners sugar, half a cup at a time, mixing well after each addition until fully incorporated.
- Step 3: Add the almond extract and blend it into the mixture.
- Step 4: Carefully fold the homemade marshmallow fluff into the butter mixture until everything is well combined and smooth.
Tips & Variations
- For a different flavor, substitute the almond extract with vanilla or lemon extract.
- If the frosting is too thick, add a teaspoon of milk or cream to adjust the consistency.
- Use store-bought marshmallow fluff if you don’t have homemade available—it works just as well.
Storage
Store your marshmallow buttercream frosting in an airtight container at room temperature for up to two weeks. If you prefer, you can refrigerate it for longer storage; just bring it to room temperature and re-whip before using.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use salted butter for this frosting?
It’s best to use unsalted butter to control the sweetness and flavor balance, but if you only have salted butter, reduce or skip any additional salt in your baked goods.
Will this frosting hold up in warm weather?
Marshmallow buttercream is lighter than traditional buttercream but can soften in heat. Keep desserts refrigerated until serving and avoid exposing them to high temperatures for extended periods.
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Marshmallow Buttercream Frosting Recipe
- Total Time: 10 minutes
- Yield: Enough to frost a 9×13 inch cake or approximately 24 cupcakes
Description
This Marshmallow Buttercream Frosting is a creamy, fluffy, and sweet topping perfect for cakes and cupcakes. Made with softened butter, powdered sugar, almond extract, and homemade marshmallow fluff, it delivers a light and airy texture with a delightful almond hint. Easy to prepare and store, this frosting is ideal for adding a sweet finish to your baked treats.
Ingredients
Frosting Ingredients
- 1 cup butter (softened)
- 4 cups confectioners sugar
- 1/2 teaspoon almond extract
- 13 ounces homemade marshmallow fluff
Instructions
- Cream the Butter: Place your softened butter in the bowl of your mixer. Beat on medium speed until the butter is smooth and creamy, forming a perfect base for the frosting.
- Add Sugar Gradually: Slowly add the confectioners sugar, about 1/2 cup at a time, mixing well after each addition until all the sugar is fully incorporated and the mixture is smooth.
- Add Almond Extract: Pour in the almond extract, incorporating it evenly into the butter and sugar mixture to add a subtle but lovely flavor.
- Fold in Marshmallow Fluff: Carefully fold the homemade marshmallow fluff into the butter mixture until well combined, ensuring the frosting remains light and airy.
- Storage: Transfer the frosting to an airtight container and store at room temperature for up to two weeks, maintaining freshness and spreadability.
Notes
- This frosting pairs wonderfully with chocolate, vanilla, and almond-flavored cakes.
- For a more intense almond flavor, you can increase the almond extract slightly, but avoid adding too much to prevent bitterness.
- Ensure the butter is softened but not melted for best texture.
- If the frosting is too thick, add a teaspoon of milk or cream to loosen it slightly.
- Store leftovers in an airtight container at room temperature away from direct sunlight.
- Prep Time: 10 minutes
- Cook Time: 0 minutes
- Category: Frosting
- Method: No-Cook
- Cuisine: American
Keywords: Marshmallow buttercream, fluffy frosting, homemade frosting, almond extract frosting, marshmallow fluff frosting

