Mix 2 cups water and glue together. Mix until mixed together well, set aside.
Mix 1/2 cup of water, borax and food coloring together in separate bowl. Mix until borax is dissolved.
Pour Borax mixture into glue mixture bowl mix the 2 together well.
Kneed the mixture for a few minutes until it has formed into flubber and the food coloring is mixed in good.
Have fun with your Flubber!
Store in mason jar or Ziplock bag when not in use and the Flubber to last for about 3 weeks.