1-cup of baking soda
1-cup sea salts
1 cup Epsom salts
About 10 drops essential oils
And a few drops of food coloring
Recipe
To get the food coloring evenly distributed, put the baking soda, sea salts, essential oils, and food coloring into a blender.
Then layer this mixture with the Epsom salts-- it turned out very pretty because the Epsom salts are crystal-like and the other salts were colored and powdery.