Add dry ingredients to bowl and mix together. 

In a separate bowl mix oils, water, and food coloring together.

Add wet ingredients to dry ingredients and mix together until the dry ingredients is all wet.

Take your bath bombs and press mixture into both halves, then place halves together and squeeze tightly. Brush any access mixture off. 

Let them sit in molds for several hours to dry and then remove from molds.

Wrap in parchment paper and add printable with twine.