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Angled view of coffee marshmallows off kilter on a white surface
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5 from 1 vote

Coffee Marshmallows

Homemade marshmallows flavored with coffee
Prep Time25 mins
Set time4 hrs
Total Time4 hrs 25 mins
Course: Dessert
Cuisine: American
Servings: 25 marshmallows


  • 8x8 pan
  • Hand or stand mixer with whisk attachment
  • Saucepan
  • candy thermometer
  • silicone spatula


  • ½ cup powdered sugar
  • ¼ cup cornstarch
  • ¼ cup cocoa powder
  • 3 packages unflavored gelatin
  • 2 cups coffee brewed and cooled to room temperature
  • 1 tablespoon instant espresso powder stirred into the brewed coffee while still hot
  • 1 ½ cups sugar
  • ½ cup corn syrup


  • Line 8x8 baking pan with parchment paper.
  • Combine powdered sugar, cornstarch, and cocoa powder in a small bowl.
  • Coat the lined pan with half of the powdered sugar mixture and set aside.
  • Place the gelatin and one cup of room temperature coffee in the bowl of a stand mixer with the whisk attached, and set aside.
  • In a medium saucepan, combine the other cup of coffee, sugar, and corn syrup.
  • Cover and heat over medium-high heat for about 5 minutes.
  • Remove the lid and attach a candy thermometer. Continue heating until the mixture reaches 240° F. Remove from heat.
  • Start the mixer on the lowest speed and slowly stream in the hot mixture.
  • Once the hot mixture is added, slowly (to avoid splatter!) increase the mixer speed until it's on the fastest speed.
  • Mix for about 10 minutes.
  • Pour marshmallow mixture into the prepared pan.
  • Sprinkle the remaining cocoa powder mixture over top of the marshmallow mixture.
  • Let set for at least 4 hours.
  • Cut into cubes, or use cookie cutters to cut into fun shapes.


Adjust the strength of the coffee flavor by adjusting how much espresso powder is added. For a more subtle coffee-flavored marshmallow, do not use any espresso powder.
When using a candy thermometer, make sure the tip of the thermometer is fully in the mixture, but is not touching the bottom of the pan.
To make these homemade flavored marshmallows without cocoa powder, use an additional ¼ cup of cornstarch.