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Halloween Slime

Halloween Slime Recipe

This colorful Halloween Slime is a fun, stretchy, edible treat made with soft marshmallows, candy corn, and powdered sugar. With orange, yellow, purple, and green swirled together, it creates a spooky four-color Halloween treat that kids will love to make, stretch, and play with.
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Prep Time 5 minutes
Cook Time 5 minutes
Total Time 10 minutes
Course Snack
Cuisine American
Servings 1 cup
Calories 420 kcal

Equipment

  • 4 medium microwave-safe bowls
  • Cutting Board
  • Small Knife
  • 4 Spoons for stirring
  • Measuring cups and spoons

Ingredients
  

Orange Slime

  • ½ cup orange candy corn pieces
  • ¾ cup marshmallows
  • ½ tablespoon vegetable oil
  • - ¾ cup powdered sugar plus more as needed

Yellow Slime

  • ½ cup yellow candy corn pieces
  • ¾ cup marshmallows
  • ½ tablespoon vegetable oil
  • ¾ cup powdered sugar plus more as needed

Purple Slime

  • ¾ cup marshmallows
  • ½ tablespoon vegetable oil
  • ¾ cup powdered sugar plus more as needed
  • Purple food coloring

Green Slime

  • ¾ cup marshmallows
  • ½ tablespoon vegetable oil
  • ¾ cup powdered sugar plus more as needed
  • Green food coloring

Instructions
 

  • Prepare the candy corn: Separate the orange and yellow portions of the candy corn by cutting away the white sections. Place the orange and yellow pieces into separate microwave-safe bowls.
    Separate the orange and yellow portions of the candy corn by cutting away the white sections
  • Make the orange slime: Add ¾ cup marshmallows and ½ tablespoon vegetable oil to the bowl with the orange candy corn. Microwave for 25 seconds, then stir well. Continue heating in short intervals if needed until melted and smooth.
  • Carefully stir a few tablespoons of powdered sugar into the orange mixture. Once cool enough to handle, transfer it to a powdered-sugar-dusted cutting board and knead, adding more powdered sugar as needed, until stretchy and less sticky.
  • Make the yellow slime: Combine the yellow candy corn, ¾ cup marshmallows, and ½ tablespoon vegetable oil in a second bowl. Microwave for 25 seconds, stir, and continue in short intervals if necessary. Mix in powdered sugar, then knead on a dusted cutting board until smooth and stretchy.
    Combine the yellow candy corn, ¾ cup marshmallows, and ½ tablespoon vegetable oil in a second bowl
  • Make the purple slime: Combine ¾ cup marshmallows and ½ tablespoon vegetable oil in a third microwave-safe bowl. Microwave for 25 seconds, stirring afterward. Continue in short intervals until melted. Add purple food coloring and stir until evenly colored. Mix in powdered sugar and knead until the slime becomes stretchy and less sticky.
    Combine ¾ cup marshmallows and ½ tablespoon vegetable oil in a third microwave-safe bowl
  • Make the green slime: Repeat the same process with ¾ cup marshmallows and ½ tablespoon vegetable oil in the fourth bowl. Add green food coloring after melting, then mix in powdered sugar and knead until smooth and stretchy.
    Repeat the same process with ¾ cup marshmallows and ½ tablespoon vegetable oil in the fourth bowl
  • Combine the colors: Once all four slime colors have cooled enough to handle, place the orange, yellow, purple, and green portions together. Gently twist them into a colorful Halloween swirl.
    Once all four slime colors have cooled enough to handle, place the orange, yellow, purple, and green portions together
  • Stretch and serve: Stretch and play with the slime immediately. If it becomes too firm, microwave it for about 25 seconds, then allow it to cool completely before handling.
    Halloween Slime Recipe

Notes

  • The four colors are orange, yellow, purple, and green for a distinctly Halloween-themed appearance.
  • The orange and yellow colors come from the candy corn, while purple and green are created with food coloring.
  • Add powdered sugar gradually. The exact amount needed may vary depending on how sticky the mixture is.
  • Do not handle the slime immediately after microwaving because the melted marshmallow mixture can be very hot.
  • Always allow reheated slime to cool before children handle it.
  • Adult supervision is recommended during preparation and reheating.
  • This is an edible slime activity rather than a traditional dessert, so children can enjoy the sensory activity while knowing the ingredients are food-safe.