You can add an optional pinch of baking soda to make it more soothing. (liveinthenow.com)
Cookies 1 1/2 tablespoons tapioca starch 1/4 cup sugar (evaporated cane juice) 1/4 cup brown sugar pinch of baking soda 1/4 cup cocoa powder 1/2 cup brown rice flour 1 teaspoon xanthan... (responsibleeatingandliving.com)
So 1 cup of the previous batch's liquid + 1 cup of water + 2 tablespoons of sugar + pinch of baking soda + all your grains in the same jar (don't wash the jar). (ditchthewheat.com)