Introduction
Discover the delightful and versatile world of frosting with this easy-to-follow recipe. This light and fluffy marshmallow frosting is perfect for topping cakes, cupcakes, or even as a sweet dip for fruit. With just a few simple ingredients, you can create a treat that will elevate your desserts to the next level.
Detailed Ingredients with measures
¾ cup salted butter, slightly softened
1½ cups powdered sugar, sifted
1 teaspoon pure vanilla extract
7 ounces marshmallow fluff
Prep Time
15 minutes
Cook Time, Total Time, Yield
Total Time: 15 minutes
Yield: Sufficient frosting for 12-15 cupcakes or one layered cake
This fluffy marshmallow frosting is not only easy to make but also a sweet indulgence that will leave everyone asking for seconds. Enjoy decorating and sharing your creations!
Detailed Directions and Instructions
Step 1: Prepare the Butter
In a stand mixer fitted with a wire whisk, beat the slightly softened butter on high speed until fluffy and pale yellow, about 3 minutes. Scrape down the sides of the bowl to ensure even mixing.
Step 2: Incorporate the Sugar
Reduce the mixer speed to low. Add the sifted powdered sugar ½ cup at a time, beating well after each addition. Scrape down the sides of the bowl after each addition. Once all the powdered sugar is added, increase the mixer speed to high and beat until the mixture is well combined and fluffy, about 2½ to 3 minutes.
Step 3: Add Vanilla Extract
Lower the mixer speed to medium and add the vanilla extract. Mix until no streaks of vanilla are visible, ensuring a uniform flavor throughout the frosting.
Step 4: Mix in Marshmallow Fluff
Add all the marshmallow fluff, scraping as much as possible from the container. Mix on medium speed until just incorporated. Increase the mixer speed to high and continue to mix for another 3 to 4 minutes, until the mixture is no longer sticky and is light and fluffy.
Step 5: Store the Frosting
Store the frosting covered in the refrigerator until ready to use. Before frosting, let it sit at room temperature for a few minutes, then transfer to a piping bag with your choice of decorator’s tip for easy application.
Step 6: Freezing Instructions
The frosting can be frozen for up to 3 months. When ready to use, thaw overnight in the refrigerator, then re-whip on high speed to re-inflate and restore the desired consistency before using.
Notes
Ensure that the butter is slightly softened to achieve the best fluffy texture. Sifting the powdered sugar prevents lumps and ensures a smooth frosting. Store any leftover frosting in an airtight container in the refrigerator for longer shelf life.

Cook techniques
Using a Stand Mixer
Utilize a stand mixer fitted with a wire whisk attachment for best results. This ensures even mixing and helps achieve a light and fluffy texture.
Sifting Powdered Sugar
Always sift powdered sugar before adding it to your mixture. Sifting helps remove lumps and ensures a smooth frosting.
Scraping the Bowl
Regularly scrape down the sides of the bowl during mixing. This helps incorporate all ingredients evenly and prevents dry pockets in the mixture.
Controlling Mixer Speed
Adjust the mixer speed gradually to avoid splattering. Start slow when adding dry ingredients, then increase speed for better mixing once combined.
Incorporating Vanilla
Add pure vanilla extract at medium speed to avoid losing its flavor. Mix until fully homogenized to ensure an even distribution of flavor.
Mixing Marshmallow Fluff
Add marshmallow fluff last and mix on medium speed until just combined. Avoid overmixing to maintain the light texture.
Storing Frosting
Store any unused frosting in the refrigerator, covered tightly. This prolongs freshness and prevents it from drying out.
Re-whipping Frozen Frosting
For frozen frosting, allow it to thaw overnight in the refrigerator. Re-whip on high speed before use to restore its fluffy texture.
FAQ
Can I use unsalted butter instead of salted butter?
Yes, you can use unsalted butter if you prefer less salt in your frosting. Just add a pinch of salt if desired.
How can I make this frosting more colorful?
You can add gel or liquid food colorings to the frosting while mixing. Start with a small amount and gradually add more until you achieve the desired hue.
What desserts can I use this frosting on?
This frosting is great for cakes, cupcakes, cookies, and even as a filling for pastries or sandwiches.
How do I fix a runny frosting?
If your frosting is too runny, gradually add more sifted powdered sugar until you reach the desired consistency.
Can I flavor the frosting differently?
Absolutely! You can add different extracts (like almond or lemon) for unique flavors or even mix in cocoa powder for a chocolate version.
How long can I keep the frosting in the fridge?
The frosting can be stored in the refrigerator for up to 2 weeks in an airtight container.
Is it safe to eat marshmallow fluff?
Yes, marshmallow fluff is safe to eat as it is made from sugar, corn syrup, and egg whites, all of which are safe when properly produced.
Conclusion
This fluffy marshmallow frosting offers a delightful sweetness that pairs perfectly with a variety of cakes and desserts. Its smooth texture and rich flavor make it a versatile choice for any occasion, bringing a light and airy touch to your baked goods.
Chocolate Cake
Pair this frosting with a rich chocolate cake for a classic combination that balances sweetness with indulgence.
Red Velvet Cupcakes
Use this frosting on red velvet cupcakes for a striking and delicious treat that enhances the cake’s flavor.
Vanilla Bean Cookies
Spread a layer of this frosting between two vanilla bean cookies for a fun twist on a classic sandwich cookie.
Graham Cracker Dessert
Incorporate the frosting into a graham cracker dessert by layering it with crushed graham crackers and chocolate pudding for a no-bake treat.
Fruit Dip
Serve this fluffy frosting as a dip for fresh fruit, adding a sweet and creamy element to your fruit platter.
Chocolate Dipped Pretzels
Use the frosting as a dip for chocolate-coated pretzels, combining sweet and salty flavors in one delicious bite.
Marshmallow Fluff Brownies
Top brownies with this marshmallow frosting for a decadent dessert that enhances the rich chocolate flavor.
