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stack of 3 birthday marshmallows surrounded by other marshmallows and lots of sprinkles on a white surface
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5 from 3 votes

Birthday Marshmallows

Vanilla marshmallows loaded with sprinkles!
Prep Time25 minutes
Set time4 hours
Total Time4 hours 25 minutes
Course: Dessert
Cuisine: American
Servings: 25 marshmallows

Equipment

  • Saucepan
  • Stand mixer with whisk attachment (a hand mixer will work too!)
  • candy thermometer
  • silicone spatula
  • 8x8 pan

Ingredients

  • ¼ cup powdered sugar
  • ¼ cup corn starch
  • 3 packages unflavored gelatin
  • 1 cup water divided
  • 1 ½ cup sugar
  • ½ cup corn syrup
  • 1 teaspoon vanilla
  • ½ cup sprinkles ¼ c. nonpereils and ¼ cup jimmies is best

Instructions

  • Combine powdered sugar, cornstarch, and ¼ cup sprinkles (nonpareils).
  • Line an 8×8 pan with parchment paper, and coat the bottom and sides with approximately half of the cornstarch mixture. Set aside.
  • Put gelatin and first ½ cup of water into the mixing bowl of a stand mixer with the whisk attachment and set aside.
  • Heat sugar, corn syrup, and the other ½ cup water in a small to medium pot, covered over medium-high heat for approximately 5 minutes.
  • Uncover and continue heating until mixture reaches 240 F on a candy thermometer. This may take some time. Remove from heat.
  • Begin beating the gelatin mixture with the whisk attachment of the mixer and very slowly pour in the syrup mixture.
  • Increase the mixer to high speed (do this slowly to avoid splatter!) and beat for an additional 10 minutes.
  • Beat in vanilla till just mixed.
  • Stir in ¼ cup sprinkles (jimmies).
  • Pour mixture into the prepared pan and spread evenly with a greased spatula.
  • Sprinkle the remainder of the powdered sugar mixture over top and let sit for at least 4 hours. Overnight is ideal.
  • Cut into cubes with a greased knife. Roll the sides of each marshmallow cube in the excess corn starch mixture and enjoy!

Notes

Use a 9x13 pan for smaller marshmallows. The 8x8 pan makes super thick mallows!
Once adding the sprinkles to the marshmallow filling, you'll want to stir just enough to disburse them evenly, but if you stir too much, the sprinkles will melt into the filling.