When you think of the ultimate cake topping or cupcake companion, it’s hard to overlook the light, airy sweetness of marshmallow frosting. This Easy Marshmallow Frosting recipe is a game-changer for anyone looking to elevate their baking game. With just a handful of ingredients and a bit of technique, you can whip up a frosting that’s not only delicious but also brings a delightful texture to your treats. Perfect for birthday cakes, holiday desserts, or just because you want to indulge in something sweet, this frosting is a must-try!
Why This Easy Marshmallow Frosting Stands Out

The magic of this Easy Marshmallow Frosting lies in its unique combination of fluffiness and sweetness. Unlike buttercream, which can sometimes feel rich and heavy, this frosting is light as a cloud, making it ideal for those who prefer a less decadent topping. Additionally, it’s highly versatile: you can easily customize it with different flavors or colors to suit any occasion. Whether you’re frosting a simple vanilla cake or jazzing up chocolate cupcakes, this frosting will deliver a sweet finish that everyone will love.
What You’ll Gather
To make this Easy Marshmallow Frosting, you will need the following ingredients:
- 4 large egg whites (room temperature for best results)
- 1 cup (200g) granulated sugar (for sweetness and stability)
- 1/4 teaspoon cream of tartar (to help stabilize the egg whites)
- Pinch of salt (to balance the sweetness)
- 1/2 teaspoon vanilla extract (optional, for flavor)
Recommended Tools
To achieve the perfect texture for your Easy Marshmallow Frosting, gather these essential tools:
- Stand mixer or hand mixer – A stand mixer is ideal for whipping egg whites, but a hand mixer will work just fine.
- Mixing bowl – Use a clean, dry bowl to prevent any grease from affecting the egg whites.
- Spatula – A rubber spatula is perfect for folding in flavors or transferring the frosting.
- Measuring cups and spoons – Accurate measurements are key for success.
- Double boiler or microwave – For heating the sugar with egg whites.
From Start to Finish: Easy Marshmallow Frosting

Step 1: Prepare the Ingredients
Ensure that your egg whites are at room temperature. This helps them whip up to a greater volume. Measure out your sugar, cream of tartar, salt, and vanilla extract if using.
Step 2: Combine Sugar and Egg Whites
In a heatproof bowl (like a glass mixing bowl), combine the egg whites, sugar, cream of tartar, and salt.
Step 3: Heat the Mixture
Set your bowl over a pot of simmering water (double boiler method) or microwave the mixture in short bursts, stirring frequently. Heat until the sugar dissolves completely and the mixture reaches 160°F (70°C) to pasteurize the egg whites.
Step 4: Whip the Mixture
Transfer the warm mixture to your stand mixer bowl. Using the whisk attachment, whip at medium-high speed until stiff peaks form and the mixture cools to room temperature. This will take around 5 to 10 minutes.
Step 5: Add Flavor
If you’re using vanilla extract, gently fold it into the whipped frosting using a spatula.
Step 6: Frost Your Treats
Your Easy Marshmallow Frosting is now ready to be spread or piped onto your favorite cakes or cupcakes. Enjoy the fluffy, sweet goodness!
Season-by-Season Upgrades

Elevate your Easy Marshmallow Frosting for different seasons and occasions with these fun variations:
- Spring: Add lemon or lime zest for a refreshing citrus twist.
- Summer: Mix in some crushed strawberries or raspberries for a fruity flavor.
- Fall: Incorporate a dash of pumpkin spice or cinnamon for a warm, cozy flavor.
- Winter: Stir in some peppermint extract for a festive touch, perfect for the holidays.
Pro Tips & Notes
- Ensure all your tools are clean and dry to prevent any grease from affecting the egg whites.
- Whip the egg whites until they form stiff peaks for the best texture.
- Feel free to experiment with different extracts like almond or coconut for a unique flavor profile.
- This frosting is best used immediately, but it can be stored in an airtight container for a short time.
Store, Freeze & Reheat
If you have leftover Easy Marshmallow Frosting, you can store it in the refrigerator in an airtight container for up to 3 days. If you need to freeze it, place the frosting in a freezer-safe container and freeze for up to 2 months. To reheat, allow it to come to room temperature and give it a quick whip with your mixer to restore its fluffy texture.
Reader Questions
Can I use pasteurized egg whites instead of fresh?
Yes, you can use pasteurized egg whites if you want to skip the heating step. Just make sure to beat them until stiff peaks form.
What can I do if my frosting is too runny?
If your frosting is too runny, it might be due to over-whipping or too much moisture. You can try adding a bit of powdered sugar to thicken it up, but be careful not to overdo it.
Can I color my Easy Marshmallow Frosting?
Absolutely! You can add gel food coloring or liquid food coloring to achieve your desired shade. Start with a small amount and mix until you reach the desired color.
How do I prevent the frosting from deflating?
Make sure to whip the egg whites to stiff peaks. Also, avoid adding any heavy ingredients that could weigh the frosting down. Use it immediately after making for the best results.
If you’re looking for healthier alternatives or variations, consider trying these recipes:
Final Thoughts
Making this Easy Marshmallow Frosting is a delightful experience that brings joy to both the baker and those who get to enjoy the final product. The lightness of the frosting combined with its sweetness makes it a crowd-pleaser for any occasion. Whether you’re topping cupcakes for a birthday party or frosting a simple cake for a cozy family gathering, this frosting adds a lovely touch that elevates your dessert game. With just a few ingredients and a bit of technique, you can create a frosting that will have everyone asking for seconds. Happy baking!

Easy Marshmallow Frosting
Equipment
- Stand Mixer or Hand Mixer
- Mixing Bowl
- Spatula
- Measuring cups and spoons
- Double Boiler or Microwave
Ingredients
- 4 large egg whites room temperature for best results
- 1 cup granulated sugar 200g, for sweetness and stability
- 1/4 teaspoon cream of tartar to help stabilize the egg whites
- pinch salt to balance the sweetness
- 1/2 teaspoon vanilla extract optional, for flavor
Instructions
Easy Marshmallow Frosting Instructions
- Ensure that your egg whites are at room temperature. Measure out your sugar, cream of tartar, salt, and vanilla extract if using.
- In a heatproof bowl (like a glass mixing bowl), combine the egg whites, sugar, cream of tartar, and salt.
- Set your bowl over a pot of simmering water (double boiler method) or microwave the mixture in short bursts, stirring frequently. Heat until the sugar dissolves completely and the mixture reaches 160°F (70°C) to pasteurize the egg whites.
- Transfer the warm mixture to your stand mixer bowl. Using the whisk attachment, whip at medium-high speed until stiff peaks form and the mixture cools to room temperature, about 5 to 10 minutes.
- If you’re using vanilla extract, gently fold it into the whipped frosting using a spatula.
- Spread or pipe the Easy Marshmallow Frosting onto your favorite cakes or cupcakes. Enjoy the fluffy, sweet goodness!
Notes
- Ensure all your tools are clean and dry to prevent any grease from affecting the egg whites.
- Whip the egg whites until they form stiff peaks for the best texture.
- Experiment with different extracts like almond or coconut for unique flavor variations.
- Use the frosting immediately or store in an airtight container for up to 3 days in the refrigerator.
- To thaw frozen frosting, bring to room temperature and whip again to restore fluffiness.
