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Sweet and spooky slime popcorn has that wow factor with all of the yum too. It’s filled with caramel marshmallow flavor!

Slime popcorn is similar to our Marshmallow Caramel Popcorn in flavor, it just has that extra “boo” factor. It’s as fun as our Gooey Monster Cookies and Monster Rice Krispie Treats!

A white bowl filled with green slime popcorn with candy eyeballs.

A Gooey Spooky Treat!

We love Halloween at our house! We especially love to create spooky or fun ways to dress up our food around this holiday. It’s fun for parties, but really it just makes any day of the month fun.

Create a slime monster with this Halloween treat that is just as tasty as our Marshmallow Caramel Popcorn. That intense green color and little candy eyeballs make it a fun snack for parties. Kids and adults alike are sure to love it!

This monster popcorn would even be fun to serve at a birthday party or other themed event. No need to wait for All Hallow’s Eve! The green food coloring could easily be changed and the addition of a different variety of sprinkles would make it suitable for any event. And trust me, it won’t last long!

How to Make Slime Popcorn

Slime popcorn is sweet with just a little bit of an “ew” factor. It’s so easy to make, and fun to eat!

POPCORN. Pour popcorn into a large bowl.

SAUCE. Melt butter and brown sugar together in a large saucepan over medium heat, stirring often. Stir in marshmallows until melted and smooth. Stir in green food coloring until the green is evenly distributed.

COMBINE. Pour the green marshmallow mixture over the popcorn and stir until evenly coated. Spread the popcorn mixture out on a parchment paper-lined baking sheet to set up (you can spray your hands with cooking spray or get them wet to help spread it out).

DECORATE. Sprinkle in candy eyeballs and allow to cool and set up.

VARIATIONS

This fun slime popcorn recipe gets its intense green color with neon green food gel. Make it your own with any of these variations!

  • Lollipops. Shape popcorn into balls and attach them to a lollipop stick.
  • Red hots. Add a few red hot candies or Halloween sprinkles to the mixture, but be sure you don’t add too many mix-ins that there isn’t enough marshmallow goo to cover everything. 
  • Unicorn popcorn. Change up the color (try pink!) and add rainbow sprinkles. Or try a variation of your own!
Mixing the green marshmallow mixture with the popcorn and candy eyeballs.

TIPS + Storing

To prevent sticking. The gooey marshmallow popcorn will be sticky. Wet hands help keep the gooey mixture from sticking to them. You can also spray them with cooking spray and utilize a silicone spatula.

Popcorn. Be sure to use plain popcorn, not buttered or kettle corn-flavored popcorn. If you wish to air pop your own kernels, you will need ⅓ cup of unpopped kernels to yield about 10 cups of popped corn.   

Marshmallows. You will need 16 oz of marshmallows. They can be mini marshmallows or jumbo sized. Marshmallows must be fresh otherwise the popcorn mixture can set too hard. So save that bag in the back of the pantry to put in some Halloween Hot Chocolate.

STORE. The slime popcorn can be stored in an airtight container or wrap individual balls tightly with plastic wrap. It is best when consumed within 2 days, but can last for 5 days. 

A white bowl filled with green slime popcorn covered in candy eyeballs.

Recipe FAQ

Can I use an air popper to make popcorn slime?

For ease I used microwave bags of plain popcorn, however, you can easily use an air popper. You will need ⅓ cup of unpopped kernels to yield about 10 cups of popped corn.

Why is my popcorn slime too hard to eat?

Using old marshmallows or overcooking the marshmallows can cause the mixture to harden into a treat that is just too hard to eat.

What kind of food coloring do I use to make slime popcorn?

The intense green coloring in my slime popcorn came from using neon green food gel. If you use regular green food dye the coloring will be more of a light green.

For More Halloween Treats, Try:

5 from 3 votes

Slime Popcorn Recipe

By: Lil’ Luna
Sweet and spooky slime popcorn has that wow factor with all of the yum too. It's filled with caramel marshmallow flavor!
Servings: 10
Prep: 10 minutes
Cook: 10 minutes
Total: 20 minutes

Ingredients 

  • 10 cups popped popcorn or 3 – 2.03-ounce bags
  • ½ cup packed brown sugar
  • ¼ cup butter
  • 1 16 ounce bag marshmallows
  • green food coloring
  • 1/2 cup candy eyeballs

Instructions 

  • Pour popcorn into a large bowl.
  • Melt brown sugar and butter together in a saucepan over medium heat, stirring often. Stir in marshmallows until melted and smooth. Stir in green food coloring until the color is evenly distributed.
  • Pour mixture over popcorn and stir until evenly coated. Spread out on a parchment paper lined baking sheet to set up (you can spray your hands with cooking spray to help spread out).
  • Sprinkle in candy eyeballs and allow to cool and set up.

Nutrition

Calories: 700kcal, Carbohydrates: 133g, Protein: 18g, Fat: 12g, Saturated Fat: 4g, Polyunsaturated Fat: 4g, Monounsaturated Fat: 3g, Trans Fat: 0.2g, Cholesterol: 12mg, Sodium: 52mg, Potassium: 465mg, Fiber: 21g, Sugar: 13g, Vitamin A: 142IU, Calcium: 19mg, Iron: 5mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Course: Dessert
Cuisine: American
Making this recipe? Tag us!
Share it with us on Instagram using the hashtag #lilluna, so we can see what you’re creating in the kitchen!

About Kristyn

My name is Kristyn and I’m the mom of SIX stinkin’ cute kids and the wife to my smokin’ hot hubby, Lo. My mom’s maiden name is Luna, and I’m one of the many crafty “Lil’ Lunas” in the fam. On this site I like to share all things creative - from recipes to home decor to gifts and home decor ideas. Welcome!

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