Description
This Fluffy Marshmallow Buttercream is smooth, creamy, airy, and perfectly sweet with a soft marshmallow flavor that makes every dessert irresistible. Whether you need an easy cupcake frosting, a quick cake filling, or a bakery-style topping for brownies and cookies, this easy recipe delivers beautiful results every time. The light texture pipes perfectly onto cupcakes and spreads effortlessly over layer cakes for stunning dessert presentation.
Perfect for birthday cakes, holiday desserts, easy dinner party sweets, and fun baking ideas, this homemade buttercream frosting combines marshmallow fluff, butter, powdered sugar, and vanilla into one dreamy frosting recipe. Its fluffy consistency and rich flavor make it one of the best frosting recipes for cupcakes, cakes, brownies, cookies, and creative dessert ideas.
Ingredients
1 cup unsalted butter, softened
2 cups marshmallow fluff or marshmallow creme
3 1/2 cups powdered sugar, sifted
2 teaspoons pure vanilla extract
2 tablespoons heavy cream or milk
1/4 teaspoon salt
Instructions
1. Place the softened butter into a large mixing bowl and beat with a hand mixer or stand mixer for 3–5 minutes until pale and fluffy.
2. Add the marshmallow fluff and continue mixing until smooth, creamy, and fully incorporated.
3. Mix in the vanilla extract and salt until evenly combined.
4. Gradually add the sifted powdered sugar one cup at a time while mixing on low speed.
5. Increase mixer speed to medium-high and whip the frosting for 2–3 minutes until light and airy.
6. Add heavy cream or milk one tablespoon at a time until the desired consistency is reached.
7. Continue whipping briefly for extra fluffy texture if needed.
8. Transfer the buttercream to a piping bag or use immediately for frosting cakes, cupcakes, brownies, or cookies.
9. Chill the frosting for 10–15 minutes if it becomes too soft for decorating.
10. Decorate desserts as desired and serve fresh.
Notes
Always use softened butter instead of melted butter for the fluffiest texture.
Sift the powdered sugar before mixing to keep the frosting smooth and lump-free.
If the buttercream becomes too soft while decorating, refrigerate it for 10–15 minutes before piping.
- Prep Time: 15 minutes
- Cook Time: 0 minutes
- Category: Dessert
- Method: Mixing
- Cuisine: American
Nutrition
- Serving Size: 2 tablespoons
- Calories: 245
- Sugar: 30g
- Sodium: 85mg
- Fat: 13g
- Saturated Fat: 8g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 32g
- Fiber: 0g
- Protein: 1g
- Cholesterol: 35mg