- 1/4 cup liquid castile soap (I used Dr. Bronners - I found it cheapest at HEB - like $10 instead of $16 a bottle.) Use the baby one if you want to add essential oil. I've also made this using the peppermint soap and not added the oil at all because it already smell great.
- 3/4 cup distilled water
- 8-10 drops essential oil
- Mix everything together and pour into foaming soap dispenser.