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5 from 9 votes

Homemade Marshmallow Fluff

Homemade Marshmallow Fluff is a sweet and gooey spreadable concoction that tastes like marshmallows.
Prep Time15 minutes
Total Time15 minutes
Course: Dessert
Keyword: Homemade Marshmallow Fluff
Servings: 6 cups
Author: Amanda Rettke- iambaker.net

Ingredients

Syrup Mixture

  • cup (83 g) water
  • ¾ cup (150 g) granulated sugar
  • ¾ cup (256 g) light corn syrup

Egg Mixture

  • 3 large egg whites, room temperature
  • ½ teaspoon cream of tartar
  • 1 teaspoon vanilla extract

Instructions

Syrup Mixture

  • In a medium saucepan over medium-high heat, add water, sugar, and corn syrup. Stir the syrup mixture gently to combine. Then, allow it to sit on the heat undisturbed until the mixture reaches 240°F. (Additional stirring will cause the syrup mixture to crystalize and you won't get a creamy marshmallow fluff.) This could take up to 10 minutes.
  • While the syrup is heating, make the egg white mixture.

Egg White Mixture

  • To the bowl of a stand mixture fitted with the whisk attachment (or using a handheld mixer), add the egg whites and cream of tartar. With the mixer on low speed, whisk until the eggs begin to foam. Slowly increase the speed to medium-high and mix until the eggs are doubled and have turned white with soft peaks. When you lift the whisk out of the mixture, the top of the peak should slightly droop (like soft-serve ice cream). This whole process takes about 3-4 minutes.
  • With the stand mixer on low speed, slowly pour a thin stream of syrup into the egg whites. The egg whites will deflate at first, but will start to thicken and fluff back up as the syrup is added.
  • Once the mixture is combined, gradually increase to medium speed and continue to whisk for 7-8 minutes, or until the mixture is fluffy and shiny.
  • Once the mixture is fluffy and shiny, add vanilla and mix for an additional minute.
  • Serve immediately as a topping for your favorite desserts. You can also use this mixture in any recipe that calls for marshmallow fluff or marshmallow creme.

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