1 1/2 to 2 cups cornstarch
1 cup water
- Take 1 1/2 cups of cornstarch and add 1 cup of water. Mix. If the 'goo' isn't gooey enough, add a little more water. Keep adding water until you have a consistency that is relatively easy to stir, but not runny.
- This may look like a messy project but it cleans up very quickly with extra water