Magical smooth elastic-y goop. here’s the recipe! You need: 3/4 cup cold water 1 cup Elmer’s glue liquid food coloring 1/2 cup hot water 1 teaspoon borax (you can find this in a box in the laundry aisle) directions: step 1: in bowl 1 – mix together the cold water, glue, and food coloring. set aside. step 2: in bowl 2 – mix together the hot water and borax, until the borax is completely dissolved. step Step3: slowly add glue mix to borax mix. mix well. pour off excess water.