Super easy!
Put about 2 table spoons of white clay in a small bowl, and mix in water a teaspoon at at time until you get a toothpaste consistency.
Before adding in the water you can add any number of optional ingredients.
One great idea is tooth and gum supporting spices or essential oils (a sprinkle or few drops of) clove, cinnamon, lemon, any mint, etc. Registered Ayurvedic Practitioner, Chara Caruthers, says to have an “astringent (for tightening the gums), pungent (for its cleansing qualities), and bitter (for its antiseptic qualities)” (and someday I’ll even know which spices correspond to which quality!). :)
I like to add in coconut oil and sometimes finely ground sea salt.
Many people like baking soda. I put it in my deodorant, so I don’t want it here, too.
Store it in a small glass jar, one jar per user. Dip your wooden toothbrush in and away you go!
Enjoy and happy brushing!