First, combine the cornstarch and jello powder mix in a large mixing bowl until they are well combined.
Next, add in 1/4 of a cup of the warm water into the mixture and stir until it's well combined. It will be lumpy and difficult to stir once you add water. Don't worry, just keep working with it.
After this, you'll need to use your hands to mix in the last 1/4 cup of the warm water. Knead the slime with your hands until the jello is the consistency that you prefer.
We like it to be firm if you squeeze and not drip like a liquid. Pull it slowly and see if it stretches if you pull.
Recipe Notes
Tips for making jello play slime:If your slime is too sticky, add more cornstarch. If the slime is too firm, add more water. You can easily work with this slime recipe until it's perfect!It really is a blast to make and so much fun to play with! Once you make it, you will see just how to get it the perfect consistency and how easy it really is.