Can you make slime with Jell-O? Yes, you can! This awesome JELLO slime below is one we want to share with you. Read on to find out how to make slime with Jell-O and cornstarch.
Jello Slime Recipe
Love the smell of fruity Jello? This Jello slime recipe is a taste-safe, borax-free slime that kids will love! Using a sugar-free gelatin mix, this slime has a soft, jiggly, jelly slime texture that’s different from traditional slimes.
💡 Make all of our favorite Candy Slime Recipes here.
The bright colors, fun scents, and squishy consistency make it a perfect sensory activity. Plus, it’s easy to customize with different flavors of Jello powder!
Supplies:
- 1 Cup Cornstarch
- 1 Package Sugar-Free Jello (any brand flavored gelatin)
- 3/4 Cup Warm Water (as needed)
- Cookie Sheet or Tray (to keep table surface clean)
💡 Note: Sugar-Free Jello is recommended.

💡 Also use Jello to make a fun homemade Jello playdough!
How to Make Jello Slime or Jelly Slime
1. Combine the cornstarch and Jello powder until fully mixed.

2. Add 1/4 cup of water and stir well. When the mixture becomes impossible to stir, add another 1/4 cup of water.

3. At this point, most of the cornstarch should be mixed in so start kneading in 1 tablespoon of water until the mixture can “stretch” or droop a bit.
💡 TIP: Make sure to add the water slowly so you don’t make oobleck, which is a cool cornstarch slime.
Oobleck is also extremely fun and cool science, so make sure to give that activity a try too!

4. After playing with your jello slime, store in a container in the fridge and just add more water if needed to soften it for subsequent play.

💡 SLIME-MAKING NOTE: As mentioned above, it’s essential to remember that these edible slime recipes won’t necessarily behave like a typical slime recipe made with chemical activators. They are still tons of fun and great for kids’ sensory play!

Jello Slime Tips
They don’t have the “exact same” consistency as glue-based slime, but they’re even more fun because kids can sneak little tastes!
Also, you can let the younger kids get involved without worry—and there are no issues at parties or playdates where a mom might insist on borax-free slime.
I tried this recipe two ways—with a half Teaspoon of regular JellO and sugar-free JellO—and noticed two differences that made me prefer the sugar-free version.
First, the regular JellO dissolved differently, making the mixture softer and less cohesive. It was fun, but if you prefer a “solid slime,” this wasn’t it—and you’d have to play overtop of a bin or tray.
Second, the regular JellO stained my hands – and I’m sure would stain kids’ clothing. The sugar-free JellO stained my hands a bit but not nearly as much (and washed away after two hand washings).
It also didn’t stain my table surface, which is excellent because I feared the regular JellO Slime would touch it.
More Fun Edible Slime You Can Make
Check out our list of edible slime recipes, including…



Grab the Ultimate Slime Recipe Bundle
All the best homemade slime recipes in one place with plenty of fantastic extras!
What’s Included:
- The Ultimate Slime Guide contains all the specialty recipes you or your kids want to make! You’ll find all the best tips, tricks, hints, and slime-y info in almost 100 pages!
- The Ultimate Slime Holiday Guide covers all the best holidays and seasons with special themes and slime-y projects!
- The Ultimate Borax-FREE and Taste-Safe Slime Guide shows you how to make all the best borax-free, taste-safe, and non-toxic slimes kids love, such as marshmallow slime. These recipes do not use chemical activators such as saline solution, liquid starch, or borax powder, making them truly borax-free.
- The Ultimate Slime Coloring Book is an easy-to-print coloring book kids will love! Color and design your favorite slimes!
- The Slime Starter Guide is a fact-filled information guide with everything you need to know to make the best slime ever!
- Slime Science Project Pack helps you turn slime-making into a science lesson!











Hi, Sarah for this awesome JELLO Edible Slime Recipe for Kids and Borax Free Alternative Slime Recipe. My kids also loved it and like to share it on their social profile. They really become your blog fan and me too for this awesome slime recipe.
They also tried this blog recipe http://iteenworld.com/how-to-make-slime-with-laundry-detergent/ and its worked. Hopefully, your recipe worked better than out of shampoo and toothpaste recipes.
Again Say to You a Big Thanks
It’s always fun to try out new slime recipes, comparing and contrasting the textures and consistency. I featured your link in an edible slime recipe round up. I hope it sends you lots of extra traffic.
Terrific thank you!
I have 14 kids I want to make this with how much jello, cornstarch and water do you recommend using?
HI, it really depends on how much you want each kiddo to have. This recipe could be shared by 2 kids easily.