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S'mores brownies on a cutting board.

Homemade Marshmallow Fluff

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A silky, smooth, high-gloss marshmallow fluff recipe that's perfect for piping or toasting!

Ingredients

  • 3 egg whites, room temperature
  • 1/4 teaspoon (1.4 g) salt
  • 1/3 cup (66.6 g) sugar
  • 1 cup (300 g) light karo syrup
  • 2 tablespoons (29.6 g) water
  • 1 tablespoon (12 g) vanilla bean paste or vanilla extract

Instructions

  • In a medium size sauce pan, combine the corn syrup, sugar, water and vanilla paste. Heat over a medium flame, stirring occasionally, until the sugar is dissolved and just simmering, about 3 to 5 minutes. Turn the heat off while you move to the next step.
  • In the bowl of a standing mixer with the whisk attachment, or using a hand mixer and a large mixing bowl, beat the eggs and salt until fluffy and frothy.
  • With the mixer on medium speed, add a tiny bit of the hot sugar mixture to the egg whites a little at a time. (Temper the eggs - don't scramble the them). I usually have the sugar mixture in a silicone bowl that I can squeeze as I pour, in a slow, steady stream.
  • Eventually, all of the sugar will be added. Turn the mixer up to high. Beat the mixture on high for about 5 minutes or until very stiff and shiny.
  • Best used right away.
  • Spread of the brownies and then use a kitchen torch to toast the fluff.
Course: Dessert
Keyword: Marshmallow Fluff