If you’ve ever wanted to learn how to make oobleck at home, à la Bartholomew and the Oobleck by Dr. Seuss, this oobleck recipe tutorial is for you! Super inexpensive and a fun kitchen science experiment...
Start by adding 2 cups of cornstarch and 1 cup of water to a large mixing bowl, along with the green paint, if desired. 3 tablespoons is a good starting point, but you can use more or less or leave it out altogether.
Using your hands, work the ingredients together until you achieve the proper suspension viscosity.
Adjust the texture by adding more corn starch or water a little at a time. Mix well with your hands after each addition. You’ll know you reached the proper consistency when it feels similar to honey or molasses, yet "tears" when you drag your fingers across the surface.
Tips & Suggestions
Important: While oobleck may look good enough to eat, it should not be consumed. Young children should be supervised while playing with oobleck.Storage: Store oobleck in an airtight container at room temperature for 24 hours. Beyond that it may start to grow mold.Tips and ideas:• Getting the consistency right » Make adjustments in small increments, mixing well before adding more corn starch or water. When you squeeze it in the palm of your hand, it should feel like a solid ball. But when you open your hand, it should flow over and between your fingers like a liquid.• Easy cleanup » Cover the play area with an inexpensive reusable vinyl tablecloth and/or work on a foil-covered cookie sheet.• Mixture starting to separate? » Work it through with your hands to recombine.