Easy Marshmallow Frosting

Frosting is the crowning glory of any baked creation, transforming a simple cake or cupcake into a decadent treat. Among the various types of frostings, marshmallow frosting stands out for its light, fluffy texture and sweet, creamy flavor.

This guide will take you through everything you need to know about making easy marshmallow frosting, from the basics to advanced tips and tricks, ensuring you achieve perfect results every time.

1. Introduction to Marshmallow Frosting

Marshmallow frosting, often referred to as marshmallow fluff or meringue frosting, is a versatile and delightful topping that can elevate your desserts. Its light and airy texture, combined with a rich, sweet flavor, makes it a favorite for many bakers.

Unlike traditional buttercream, marshmallow frosting is less dense, making it perfect for those who prefer a lighter touch.

History and Popularity

The origins of marshmallow frosting can be traced back to early American cuisine, where marshmallows were used in a variety of sweet treats.

Over time, bakers began incorporating marshmallows into frostings, leading to the creation of the beloved marshmallow frosting we know today. Its popularity has soared in recent years, thanks in part to its unique texture and the nostalgia it evokes.

2. Essential Ingredients and Tools

Before diving into the recipe, it’s important to gather all the necessary ingredients and tools. Proper preparation ensures a smooth baking experience and helps you achieve the best possible results.


  1. Egg Whites: Provide the structure and stability for the frosting.
  2. Granulated Sugar: Adds sweetness and helps achieve the desired texture.
  3. Corn Syrup: Prevents sugar crystallization and adds a glossy finish.
  4. Cream of Tartar: Stabilizes the egg whites, ensuring they whip up perfectly.
  5. Vanilla Extract: Adds flavor and aroma.
  6. Water: Helps dissolve the sugar and create the syrup.


  1. Stand Mixer or Hand Mixer: Essential for whipping the egg whites to stiff peaks.
  2. Double Boiler or Heatproof Bowl and Saucepan: For heating the egg whites and sugar mixture.
  3. Candy Thermometer: Ensures the sugar syrup reaches the correct temperature.
  4. Spatula: For folding and mixing ingredients.
  5. Piping Bags and Tips: Optional, for decorating cakes and cupcakes.

3. Step-by-Step Marshmallow Frosting Recipe

Making marshmallow frosting is a straightforward process that involves a few key steps. Follow this detailed recipe to achieve perfect, fluffy frosting every time.

Step 1: Preparing the Ingredients

Separate the egg whites from the yolks, ensuring no yolk contaminates the whites.

Measure out the granulated sugar, corn syrup, cream of tartar, and vanilla extract.

Have a small amount of water ready.

Step 2: Creating the Sugar Syrup

In a saucepan, combine the granulated sugar, corn syrup, and water.

Heat the mixture over medium heat, stirring occasionally, until the sugar dissolves.

Attach a candy thermometer to the side of the pan and continue heating until the mixture reaches 240°F (115°C).

Step 3: Whipping the Egg Whites

While the sugar syrup is heating, place the egg whites and cream of tartar in a clean mixing bowl.

Using a stand mixer or hand mixer, beat the egg whites on medium speed until soft peaks form.

Step 4: Combining the Mixtures

Once the sugar syrup reaches 240°F, carefully and slowly pour it into the egg whites while continuing to beat on low speed.

Increase the mixer speed to high and continue beating until the mixture becomes thick and glossy, forming stiff peaks.

Add the vanilla extract and beat for an additional 30 seconds to incorporate.

Step 5: Using the Frosting

Your marshmallow frosting is now ready to use. It can be spread onto cakes and cupcakes or piped using a piping bag and tips.

4. Tips for Perfect Marshmallow Frosting

Achieving perfect marshmallow frosting can be tricky, but these tips will help you master the process.

Ensure Clean Equipment

Make sure all your mixing bowls and utensils are completely clean and free of grease. Any residual fat can prevent the egg whites from whipping up properly.

Use Fresh Ingredients

Fresh egg whites and high-quality vanilla extract make a significant difference in the final flavor and texture of the frosting.

Monitor Temperature Closely

Using a candy thermometer is crucial for achieving the right sugar syrup temperature. If the syrup is too hot, it can cook the egg whites; if it’s too cool, the frosting won’t set properly.

Beat to Stiff Peaks

Beating the egg whites to stiff peaks ensures the frosting has the right structure. Stiff peaks stand straight up when the beaters are lifted and are a key indicator of readiness.

Use Immediately

Marshmallow frosting is best used immediately after it’s made. It can start to lose its fluffiness if left out for too long.

5. Variations and Flavors

Marshmallow frosting is incredibly versatile and can be customized with various flavors and additions. Here are some popular variations:

Chocolate Marshmallow Frosting

Add 1/4 cup of cocoa powder to the frosting during the final mixing stage for a rich, chocolatey twist.

Strawberry Marshmallow Frosting

Fold in 1/4 cup of pureed strawberries after the frosting has been whipped to stiff peaks, adding a fresh, fruity flavor.

Lemon Marshmallow Frosting

Add 1 tablespoon of lemon zest and 1 teaspoon of lemon juice for a tangy, citrusy variation.

Peppermint Marshmallow Frosting

Mix in 1/2 teaspoon of peppermint extract and a few drops of red food coloring for a festive, minty flavor perfect for the holidays.

6. Common Mistakes and How to Avoid Them

Even experienced bakers can encounter challenges when making marshmallow frosting. Here are some common mistakes and tips on how to avoid them:

Overbeating the Egg Whites

Overbeating can cause the egg whites to become grainy and lose their structure. Beat just until stiff peaks form, then stop.

Syrup Too Hot or Too Cold

If the sugar syrup is not at the correct temperature, the frosting won’t set properly. Use a candy thermometer to ensure accuracy.

Greasy Equipment

Any grease on your mixing bowl or beaters can prevent the egg whites from whipping up correctly. Ensure all equipment is thoroughly cleaned.

Adding Syrup Too Quickly

Pour the hot syrup slowly and steadily into the egg whites to prevent them from cooking or collapsing.

7. Creative Uses for Marshmallow Frosting

Marshmallow frosting is not just for cakes and cupcakes. Here are some creative ways to use this delicious topping:

Whoopie Pies

Use marshmallow frosting as the filling for homemade whoopie pies, sandwiching it between two soft cookies.

S’mores Cupcakes

Top chocolate cupcakes with marshmallow frosting and a sprinkle of graham cracker crumbs for a s’mores-inspired treat.

Frosted Brownies

Spread marshmallow frosting over freshly baked brownies for an extra layer of sweetness.

Hot Chocolate Topping

Add a dollop of marshmallow frosting to hot chocolate for a luxurious, creamy finish.

Fruit Dip

Use marshmallow frosting as a dip for fresh fruit, combining it with a bit of cream cheese for extra tanginess.

8. Frequently Asked Questions

Can I Make Marshmallow Frosting Ahead of Time?

Marshmallow frosting is best used immediately, but it can be stored in an airtight container at room temperature for up to 24 hours. Re-whip briefly before using.

Is Marshmallow Frosting Safe to Eat?

Yes, the hot sugar syrup cooks the egg whites, making them safe to eat. Ensure the syrup reaches the correct temperature to avoid any risk.

Can I Freeze Marshmallow Frosting?

Freezing is not recommended as it can alter the texture and consistency of the frosting.

How Do I Fix Runny Marshmallow Frosting?

If your frosting is too runny, try beating it for a few more minutes to see if it thickens. If it remains runny, it’s possible the sugar syrup was not heated to the correct temperature.

Can I Use Marshmallow Frosting on Fondant-Covered Cakes?

Marshmallow frosting is not ideal for use under fondant as it’s too soft and can cause the fondant to slip. Use it as a filling or decoration instead.

9. Conclusion

Marshmallow frosting is a delightful and versatile addition to any baker’s repertoire. Its light, fluffy texture and sweet flavor make it a favorite for many.

By following the steps and tips outlined in this guide, you can create perfect marshmallow frosting every time. Whether you’re topping a simple cupcake or a decadent layer cake, marshmallow frosting adds a touch of whimsy and nostalgia that’s sure to impress.

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