Last updated: October 2, 2026
Marshmallow fluff is a sweet, spoonable cloud you can make at home with sugar, corn syrup, and meringue powder in about 30 minutes. The recipe card below has every measurement, and the walkthrough here shows you exactly how it comes together.
What Marshmallow Fluff Is and Why Homemade Wins
Marshmallow fluff is a soft, sticky spread made from whipped sugar syrup and egg whites, and it tastes like a marshmallow that never set.
It is glossy, thick, and mild, with a clean vanilla sweetness that works in both baking and snacking.
Homemade marshmallow fluff has a few advantages over the jar on the grocery shelf.
You control the vanilla, you can skip preservatives, and you can flavor the batch any way you like.
The texture is also a little lighter when it is fresh, because the whipped meringue has not spent months sitting in a sealed container.
This version uses meringue powder instead of raw egg whites, which keeps the method simple and avoids handling uncooked eggs.
Meringue powder is dried egg white with a stabilizer, and you can find it in the baking aisle near the cake decorating supplies.
How to Make Marshmallow Fluff From Scratch
Making marshmallow fluff comes down to two things happening at the same time: a whipped meringue base and a hot sugar syrup.
You cook the syrup to 240 degrees Fahrenheit, then pour it in a slow stream into the whipping meringue so the two combine into a thick, shiny fluff.
The whole process takes about 30 minutes, and most of that is hands-off cooking and whipping.
Ingredients and Equipment
You need two tablespoons of meringue powder, a quarter cup of cold water, and a quarter teaspoon of cream of tartar for the meringue base.
For the syrup you need one cup of granulated sugar, one half cup of light corn syrup, a quarter cup of water, and an eighth teaspoon of salt, plus one teaspoon of vanilla extract at the end.
You also need a stand mixer with the whisk attachment or a large bowl and a hand mixer, a medium heavy saucepan, and a candy thermometer.
The thermometer matters more than anything else on this list, since the syrup temperature decides whether the fluff sets up thick or stays runny.
Build the Meringue Base
Combine the meringue powder, cold water, and cream of tartar in the mixing bowl and whisk on medium speed until the mixture forms soft peaks.
This takes about two to three minutes with a stand mixer, and the peaks should bend over at the tip when you lift the whisk.
Once the base forms soft peaks, turn the mixer down to low so it keeps churning gently while the syrup cooks.
The slow motion keeps the foam airy, so it is ready the moment the syrup hits temperature.
Cook the Sugar Syrup
Stir the sugar, corn syrup, water, and salt together in the saucepan over medium heat until the sugar dissolves, then stop stirring.
Clip the candy thermometer to the side of the pan and let the syrup boil until it reaches 240 degrees Fahrenheit, which is the soft ball stage and takes about eight to ten minutes.
Corn syrup is the ingredient that keeps the sugar from crystallizing, so the syrup stays smooth instead of turning grainy.
Hot sugar syrup causes serious burns, so keep the pan handle turned inward and pour slowly and carefully.
Whip the Fluff
With the mixer running on medium-high speed, pour the hot syrup into the meringue in a thin, steady stream down the side of the bowl.
Aim for the space between the whisk and the bowl wall so the syrup does not splash or set into hard threads.
Once all the syrup is in, turn the mixer to high and whip for seven to ten minutes, until the fluff is thick, bright white, and holds stiff, glossy peaks.
The outside of the bowl should feel just warm or close to room temperature, which is a good sign the fluff is fully whipped.
Beat in the vanilla extract for the last 30 seconds, then use the fluff right away or scoop it into a jar.
Marshmallow Fluff Variations and Substitutions
Vanilla is the classic flavor, but this fluff takes on other flavors easily when you add them at the end of whipping.
Swap the vanilla for a half teaspoon of peppermint extract for a holiday version, or use a teaspoon of almond extract for a bakery-style flavor.
For a warm, cozy flavor, add a pinch of cinnamon during the last minute of whipping.
You can also use a clear vanilla to keep the fluff bright white, since regular vanilla extract adds a faint cream tint.
Light corn syrup is the best choice here for a smooth, neutral result.
We recommend keeping it in the recipe, because it is what stops the sugar from forming crystals as the syrup cools into the meringue.
Meringue powder is the one ingredient we build the recipe around, so the card leaves out fresh egg whites on purpose.
Treat any egg white swap as a change to the recipe rather than an equal trade.
Ways to Use Homemade Marshmallow Fluff
Homemade marshmallow fluff works anywhere a jar of store-bought fluff would, and it is easiest to spoon it straight from the bowl.
Spread it on toast with peanut butter for a classic fluffernutter sandwich, or swirl it into a warm mug of hot chocolate.
It makes a quick fruit dip when you stir in cream cheese, and it turns rice cereal treats gooey when you fold it into the melted butter.
Fluff also works as a shortcut frosting for cupcakes and sandwich cookies.
Pipe it onto a cake, then toast the peaks with a kitchen torch for a campfire finish.
For a fast s’mores dip, spread fluff in a small oven-safe skillet and broil it for a minute or two until golden.
Fold a few spoonfuls into a bowl of chocolate fudge or use it to top a sweet potato casserole at Thanksgiving.
How to Store Marshmallow Fluff
Store marshmallow fluff in an airtight jar or container in the refrigerator for up to one week.
The fluff may loosen slightly as it sits, so give it a quick stir before using it.
Do not leave it out at room temperature for long stretches, and throw it out if it smells sour, weeps liquid, or develops any off appearance.
We do not recommend freezing it, since the texture can turn dense and sticky after thawing.
For make-ahead planning, it is best to whip a fresh batch a day or two before you need it, rather than weeks in advance.
The Story Behind Marshmallow Fluff
Marshmallow fluff has deep roots in New England, where a Somerville, Massachusetts confectioner named Archibald Query first made a spreadable marshmallow creme in the early 1900s.
He sold his recipe in 1920 to two candy makers named H. Allen Durkee and Fred Mower, who built the brand that many people still know today.
The jar became a pantry staple across New England, which is also why the fluffernutter sandwich became a regional classic.
The Somerville neighborhood still celebrates the spread each year with a festival, and the flavor is tied to childhood lunches in many parts of the country.
Homemade marshmallow fluff carries the same simple idea, only with the cooking method you can see and control.
Use the recipe card below whenever you want a batch.
Homemade Marshmallow Fluff
A thick, glossy, no-raw-egg marshmallow fluff made by whipping a hot sugar syrup into a meringue powder base until it holds stiff peaks.
Ingredients
- 2 tablespoons meringue powder
- 1/4 cup cold water
- 1/4 teaspoon cream of tartar
- 1 cup granulated sugar
- 1/2 cup light corn syrup
- 1/4 cup water
- 1/8 teaspoon salt
- 1 teaspoon vanilla extract
Instructions
- Combine the meringue powder, cold water, and cream of tartar in the bowl of a stand mixer fitted with the whisk attachment.
- Whisk on medium speed for 2 to 3 minutes, until soft peaks form, then reduce the speed to low.
- In a medium heavy saucepan, stir together the sugar, corn syrup, 1/4 cup water, and salt over medium heat until the sugar dissolves.
- Stop stirring, clip on a candy thermometer, and boil until the syrup reaches 240 degrees Fahrenheit, about 8 to 10 minutes.
- Turn the mixer to medium-high and pour the hot syrup into the meringue in a thin, steady stream down the side of the bowl.
- Turn the mixer to high and whip for 7 to 10 minutes, until the fluff is thick, bright white, and holds stiff, glossy peaks.
- Beat in the vanilla extract for the last 30 seconds.
- Use the fluff right away or spoon it into an airtight jar.
Notes
Hot sugar syrup causes serious burns, so pour slowly and keep the pan handle turned inward. Store in an airtight container in the refrigerator for up to 1 week, stir before using, and discard if it smells off or weeps liquid. We do not recommend freezing.
Nutrition Information:
Yield:
24Serving Size:
2 tablespoonsAmount Per Serving: Calories: 55Total Fat: 0gSaturated Fat: 0gSodium: 25mgCarbohydrates: 14gFiber: 0gSugar: 13gProtein: 0g
Marshmallow Fluff Questions and Answers
Is marshmallow fluff the same as marshmallow creme?
Yes, the two names describe nearly the same spread. Fluff is a brand name, while marshmallow creme is the general term, and both are whipped sugar and egg white mixtures.
Why is my marshmallow fluff runny?
The most common cause is syrup that did not reach 240 degrees Fahrenheit. Under-whipping is the other cause, so keep the mixer going until the fluff holds stiff peaks.
Can you make marshmallow fluff without corn syrup?
We recommend keeping the corn syrup, because it is what keeps the sugar smooth as it cools. Recipes that skip it tend to turn grainy, so this version does not remove it.
Do you need a candy thermometer?
Yes, a thermometer is the most reliable way to hit 240 degrees Fahrenheit. Guessing by eye is difficult, and a few degrees short or long changes the final texture.
Can you use homemade marshmallow fluff in recipes that call for the store-bought jar?
In most no-bake and topping recipes, you can use it cup for cup. Use it fresh for the best texture, since it loosens a little after a few days.
How long does homemade marshmallow fluff last?
Keep it in an airtight container in the refrigerator for up to one week. Stir it before you use it, and discard it if it smells off.
Why This Recipe Works
This marshmallow fluff works because a hot sugar syrup is whipped into a meringue base, which is the same principle behind Italian meringue.
The 240 degree syrup dissolves into the whipped foam and gives it structure, so the fluff holds its shape instead of collapsing.
Meringue powder gives the base a steady, reliable whip without needing to separate or handle raw eggs.
The stabilizers in it also help the foam stay thick after the syrup goes in.
Corn syrup keeps the sugar smooth, while the small pinch of cream of tartar helps the meringue whip up tall and hold its peaks.
The salt balances the sweetness, and the vanilla goes in at the very end so its flavor stays fresh.
Final Thoughts on Making Marshmallow Fluff
Homemade marshmallow fluff is one of those recipes that feels fancy but only asks for a thermometer and a good mixer.
Once you have made it, you can spoon it onto everything from hot chocolate to cupcakes.
Head to the recipe card above, gather your ingredients, and whip up a batch of marshmallow fluff today.
