Homemade Pumpkin Spice Marshmallows Recipe

Welcome the cozy vibes of autumn with these soft, fluffy Homemade Pumpkin Spice Marshmallows. Perfect for a warm cup of coffee or as a standalone treat, these marshmallows are infused with the quintessential flavors of fall, including pumpkin spice and a hint of cinnamon. They’re not just delicious; they’re a delightful way to elevate your autumn evenings or holiday gatherings.


Marshmallow Base:

  • 1/2 cup ice water (for dissolving gelatin)
  • 3 packets unflavored gelatin
  • 3/4 cup Karo light corn syrup
  • 1/4 cup water (for the sugar mixture)
  • 2 cups white sugar


  • 1/4 cup pumpkin puree
  • 1 tablespoon vanilla extract
  • 2 teaspoons pumpkin pie spice
  • 1/2 teaspoon cinnamon
  • 1/8 teaspoon salt

Dusting Powder:

  • 1/2 cup cornstarch
  • 2 tablespoons powdered sugar


  1. Prepare the Pan:
    • Fully cover the inside of an 8×8 or 9×9 pan with aluminum foil or parchment paper. Spray with non-stick cooking spray.
  2. Gelatin Mixture:
    • In a stand mixer bowl or a large mixing bowl, add ice water and sprinkle gelatin on top. Stir briefly to mix (ignore lumps, as they will dissolve later).
  3. Sugar Mixture:
    • In a saucepan, combine Karo syrup, sugar, and additional water. Heat over medium heat, stirring until sugar dissolves. Once dissolved, stop stirring.
    • If using a candy thermometer, heat until it reaches 240°F. Without a thermometer, watch for vigorous bubbling, then time for 90 seconds before removing from heat.
  4. Mixing:
    • With the mixer on low, carefully pour the hot sugar mixture into the gelatin. Once fully added, increase speed to medium-high and whip for 12 minutes until thick and glossy.
  5. Add Flavorings:
    • Mix pumpkin puree, vanilla extract, pumpkin pie spice, cinnamon, and salt. Add to the marshmallow mixture and beat just until incorporated.
  6. Setting:
    • Pour the mixture into the prepared pan. Sprinkle a thin layer of dusting powder over the top.
    • Let sit at least 8 hours or overnight to set.
  7. Cutting and Dusting:
    • After setting, remove marshmallow sheet from the pan. Use a sharp knife (coated with non-stick spray) to cut into pieces.
    • Dust all sides of each marshmallow with the remaining cornstarch and powdered sugar mix to prevent sticking.


  • Ensure all ingredients are measured accurately to achieve the best results.
  • The dusting powder is crucial for handling and storing the marshmallows without them sticking together.
  • Store finished marshmallows in an airtight container at room temperature to maintain their freshness.

Prep Time: 10 minutes

Cook Time: 10 minutes

Setting Time: 8 hours

Total Time: 8 hours 20 minutes


These Homemade Pumpkin Spice Marshmallows are the perfect way to capture the essence of fall in a sweet, delightful treat. Whether you’re enjoying them by a fire, sharing with friends, or adding a special touch to your seasonal beverages, these marshmallows bring a touch of sweetness to any autumn day. Enjoy crafting this simple yet rewarding recipe and savor the fluffy, spicy goodness that ensues!

Leave a Comment