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.

Related To:

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.

Get the recipe

Glow-in-the-Dark Slime 00:31

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

Keep Reading

Next Up

How to Make Roasted Garlic

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

How to Make Caramel

See how to turn sugar into caramel, then browse our caramel apple toppings bar.

How to Use Pumpkin Seeds

Pumpkins aren't just for pies and carving. Roast the seeds for a tasty treat or use them in these delicious recipes.

Haunted Gingerbread House Templates

Start with these printable templates to make Food Network's Haunted Gingerbread house.

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.

Quiz: What's Your Halloween IQ?

Take this quiz to test your smarts.

Sandra's Spooky Treats

Sandra whips up two charmingly eerie treats to give your Halloween celebrations some otherworldly flair.

Creepy Halloween Cocktail Recipes

These over-the-top Halloween cocktails from favorite Food Network chefs are sure to liven up your haunted get-together.

Corn Cob Cookie on 'It's Pinteresting!!'

Learn how to decorate a corn cob cookie.

Fright Potions and Punch for Halloween

I often advise people to find one of the many wines available with scary names: Sin Zin, Dead Arm or Devil’s Lair. Or whip up a big-batch wine that is sure to give your guests the creeps.