To make your own cashew milk simply blend 1/4 cup raw cashews with 1 cup water. (jenniferskitchen.com)
Place 2 cups of raw cashew nuts in a bowl, cover with filtered water and leave to stand for 2 - 4 hours. (swoonfood.com)
Just a suggestion I've seen in all my raw cookbooks, and one I've done before: you can use raw cashew butter in place of the soaked cashews. (shutterbean.com)