How to Make Marshmallow Fluff Recipe
Introduction
Making your own marshmallow fluff at home is easier than you might think and yields a sweet, airy treat perfect for desserts or spreading on toast. This recipe uses simple ingredients and results in a light, fluffy texture that rivals store-bought versions.

Ingredients
- 1/3 cup water
- 3/4 cup sugar
- 3/4 cup light corn syrup
- 3 large egg whites (room temperature)
- 1/2 teaspoon cream of tartar
- 1 teaspoon vanilla extract
Instructions
- Step 1: Combine the water, sugar, and light corn syrup in a medium heavy-bottom saucepan fitted with a candy thermometer. Place the pan over medium-high heat without stirring, allowing the mixture to bubble and reach 240°F (soft ball stage).
- Step 2: While the syrup is heating, place the egg whites and cream of tartar in the bowl of a stand mixer fitted with a whisk attachment, or use a large mixing bowl with an electric hand mixer. Whip the egg whites until soft peaks form, about 3-4 minutes.
- Step 3: When the sugar syrup reaches 240°F, remove it from heat. Slowly and steadily pour the hot syrup into the whipped egg whites while the mixer runs on medium speed. If you’re using a hand mixer, it’s helpful to have someone assist you with this step.
- Step 4: Once combined, increase the mixer speed to medium-high. The mixture may deflate initially but will thicken again. Continue whipping for about 7-8 minutes until glossy and firm.
- Step 5: Whisk in the vanilla extract. Allow the marshmallow fluff to cool completely before using.
- Step 6: Store the fluff in an airtight container at room temperature for up to 2 weeks.
Tips & Variations
- Make sure egg whites are at room temperature for better volume and stability.
- Use a candy thermometer for accurate syrup temperature to achieve the perfect texture.
- For extra flavor, try adding a few drops of almond or peppermint extract instead of vanilla.
- If you prefer a sweeter fluff, you can increase the sugar slightly, but keep the proportions balanced.
Storage
Store the marshmallow fluff in an airtight container at room temperature. It will keep fresh for up to two weeks. If the fluff thickens over time, you can gently stir or briefly whisk it to restore its smooth texture before using. Avoid refrigeration as it may cause the fluff to become too firm.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I make marshmallow fluff without raw egg whites?
This traditional recipe uses raw egg whites, which are cooked with the hot syrup for safety. However, if you want to avoid eggs, you can find egg-free marshmallow fluff recipes that use gelatin or aquafaba as alternatives.
Why does the mixture deflate then thicken while whipping?
When the hot syrup is added, the whipped egg whites lose some air and volume temporarily, causing deflation. Continued whipping re-incorporates air and cools the mixture, resulting in a thick, stable marshmallow fluff.
PrintHow to Make Marshmallow Fluff Recipe
This homemade Marshmallow Fluff recipe is a light, airy, and sweet spread made from whipped egg whites, sugar, and corn syrup. Perfect for adding to desserts, sandwiches, or as a topping, this fluffy concoction is easy to make with simple ingredients and requires no special equipment beyond basic kitchen tools.
- Prep Time: 10 minutes
- Cook Time: 10 minutes
- Total Time: 20 minutes
- Yield: About 1 1/2 cups 1x
- Category: Dessert Sauce/Spread
- Method: Stovetop
- Cuisine: American
Ingredients
Marshmallow Fluff Ingredients
- 1/3 cup water
- 3/4 cup sugar
- 3/4 cup light corn syrup
- 3 large egg whites (room temperature)
- 1/2 teaspoon cream of tartar
- 1 teaspoon vanilla extract
Instructions
- Prepare Sugar Syrup: Combine the 1/3 cup water, 3/4 cup sugar, and 3/4 cup light corn syrup in a medium heavy-bottom saucepan fitted with a candy thermometer. Place the pan over medium-high heat without stirring, allowing the mixture to bubble and cook until it reaches 240°F.
- Whip Egg Whites: While the syrup cooks, place the 3 large egg whites and 1/2 teaspoon cream of tartar in the bowl of a stand mixer fitted with the whisk attachment, or use a large mixing bowl with an electric hand mixer and whisk. Whip the egg whites to soft peaks, approximately 3 to 4 minutes.
- Combine Syrup and Egg Whites: When the sugar syrup reaches 240°F, remove it from heat. Slowly and steadily pour the hot syrup into the egg whites while the mixer is running on medium speed. This step may require assistance if using a hand mixer.
- Whip to Finish: Once fully combined, increase the mixer speed to medium-high. The mixture will initially deflate but then thicken again. Continue whipping for 7 to 8 minutes until thick and glossy.
- Add Flavor: Whisk in 1 teaspoon vanilla extract to flavor the marshmallow fluff.
- Cool and Store: Allow the mixture to cool completely before use. Store the marshmallow fluff in an airtight container at room temperature for up to 2 weeks.
- Enjoy and Share: Once you’ve tried this recipe, feel free to share your feedback or star rating!
Notes
- Ensure egg whites are at room temperature for better volume and stability when whipping.
- Use a candy thermometer to accurately measure the temperature of the sugar syrup to prevent crystallization and ensure proper texture.
- Be cautious when pouring hot syrup into egg whites to avoid splashing and burns.
- Store fluffy marshmallow spread in an airtight container to maintain freshness.
- This homemade fluff can be used as a topping for desserts, in sandwiches, or as a dip.
Keywords: Marshmallow Fluff, Homemade Marshmallow, Marshmallow Spread, Sweet Spread, Dessert Topping, Easy Marshmallow Recipe

