Jun 24, 2022 · ½ teaspoon baking soda 1 ½ tablespoons contact solution 1-2 drops liquid food coloring optional Instructions Stir together the food coloring and contact solution. In a mixing bowl, add the glue. Stir in the baking soda. Then, stir in the colored contact solution. Once the slime is mostly mixed together, knead with your hands to really mix well.. "/>