Measure your oils (coconut, shea, olive, castor) in a stainless steel pot, or a microwave proof plastic bowl (if you prefer microwaving your oils).
With your safety gear on, and in a well ventilated space, pour your lye into your water. Stir until dissolved, the fuming should dissipate after a minute or so.
Melt your oils on your stove's lowest setting.
Once your lye solution has cooled to 130℉, stir in the pink French clay.
Once your lye and oils solution have both come down to 110℉-120℉, stir them together and add in the essential oils.
With an immersion blender, blend until trace. Pour into molds!
Wait 24-48 hours to unmold.
Cure for 4-6 weeks in a drafty place (I think the top of the fridge is a great spot).