How to Make Glow-in-the-Dark Edible Slime

Break out the black light to make this bright-green edible slime glow. Our icky, sticky recipe makes the perfect sensory play activity for kids — and adults.

Gather Ingredients

You'll need only three ingredients to make this sweet, extremely viscous green goo come to life:

1 3/4 cups tonic water
1/3 cup potato starch
2 tablespoons lime-flavored gelatin dessert powder (such as Jell-O)

Cook

Combine all the ingredients in a medium saucepan over medium heat, then stir constantly until the mixture is thick and goopy, about 2-3 minutes. Let the mixture cool.

Play

That's it! Once your slime is cool, it's ready to go. (And it's best used right away, so there's no need to wait.) Wet your hands before picking it up to help prevent it from being too sticky. You can even cover the slime with about a half-inch of water to make handling easier. 

Drape the slime over a cup, serve it on a cupcake, feature it in the centerpiece of your Halloween spread — just use your imagination and have fun. Discard the slime after you are done playing. And the next time an urge to make glow-in-the-dark slime strikes, change up the color by simply using a different flavor of powdered gelatin.

Glow-in-the-Dark Slime 00:31

Break out the black light to make this bright-green edible slime glow.

Next Up

How to Make Roasted Garlic

How to Make Roasted Garlic: A Step-by-Step Guide from Food Network

Cupcake Costume

Learn the basics and advanced cooking techniques from Food Network with how-to advice on everything from cooking or carving a turkey to grilling corn.

10 Ways to Make Valentine's Day Special for Your Kids

Show your love from breakfast till dessert.

Moms and Dads Get Real About Their Kids’ Halloween Candy

Because you can't just let them eat all they want ... or can you?

How to Make Marshmallow Play Dough

Making your own edible play dough is child's play when you have marshmallows, plus a few pantry staples.

Kids Can Make: Play Dough

Here's a fun and easy project the whole family can work on together!

Awesome Ways to Keep Kids Busy During the Holidays

These projects won't make YOU nuts either. Promise.

Holiday Desserts Beyond Cookies

It's OK if you're not on the cookie train — your dessert options are endless.

Make-Ahead Breakfasts (Picky) Kids Will Eat

Because the morning struggle doesn't have to be that bad.

Latest Stories