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Easy Fluffy Homemade Vanilla Marshmallows for S’mores

A stack of large, fluffy homemade marshmallows generously dusted with powdered sugar on a white marble surface.

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Welcome to My Kitchen! Learn how to make soft, fluffy homemade marshmallows from scratch. This easy vanilla marshmallow recipe is perfect for topping hot cocoa or making the best s’mores. You get melt-in-your-mouth texture with simple ingredients.

Ingredients

Scale
  • 3 packets unflavored gelatin
  • 1 cup cold water, divided
  • 1 1/2 cups granulated sugar
  • 1 cup light corn syrup
  • 1/2 cup water
  • 1/4 teaspoon salt
  • 1 teaspoon pure vanilla extract
  • 1 cup powdered sugar, for dusting
  • 1/2 cup cornstarch, for dusting

Instructions

  1. Lightly grease a 9×13 inch baking pan. In a small bowl, whisk together the powdered sugar and cornstarch. Dust the bottom and sides of the prepared pan generously with about half of this mixture. Set aside the remaining dusting mixture.
  2. In the bowl of a stand mixer fitted with the whisk attachment, sprinkle the gelatin over 1/2 cup of the cold water. Let it sit for 5 to 10 minutes to bloom.
  3. While the gelatin blooms, combine the granulated sugar, corn syrup, the remaining 1/2 cup water, and salt in a medium saucepan. Stir constantly over medium heat until the sugar dissolves.
  4. Attach a candy thermometer to the saucepan. Bring the mixture to a boil without stirring. Continue to cook until the syrup reaches 240 degrees Fahrenheit (soft-ball stage). This takes about 8 to 10 minutes.
  5. Once the syrup reaches 240 degrees F, remove the pan from the heat. Turn the stand mixer on low speed and carefully and slowly pour the hot syrup down the side of the mixing bowl into the bloomed gelatin. Avoid pouring directly onto the whisk.
  6. Increase the mixer speed to high. Beat for 12 to 15 minutes until the mixture is very thick, glossy, white, and holds stiff peaks. It should feel warm, not hot, to the touch. Beat in the vanilla extract during the last minute of mixing.
  7. Working quickly, scrape the marshmallow mixture into the prepared pan. Use a lightly oiled spatula to spread it evenly into the pan.
  8. Dust the top surface generously with some of the reserved powdered sugar and cornstarch mixture. Let the marshmallows set uncovered at room temperature for at least 4 hours, or preferably overnight.
  9. Once fully set, turn the marshmallow slab out onto a cutting board dusted with more of the coating mixture. Use a large, sharp, oiled knife or a pizza cutter to cut the slab into squares. Toss the cut sides in the remaining coating mixture to prevent sticking.

Notes

  • For cutting clean squares, lightly oil your knife or pizza cutter before each cut.
  • If you want marshmallows for s’mores, cut them into thick, large squares.
  • Store your homemade marshmallows in an airtight container at room temperature for up to two weeks.

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