Blend cashews and their water in a blender until smooth. If desired, strain through cheesecloth. (Cashews are soft enough that they blend almost completely into a liquid, so straining isn’t really necessary. I only sort-of strained it this time, and next time I probably won’t bother. The result is a kind of “chewy” drink, but I don’t mind that. Protein!).
Stir in remaining ingredients. To stay true to Blueprint, add only agave, vanilla and cinnamon. To take it up a notch (which I highly recommend!), make it chai by adding 1/2 teaspoon each ground nutmeg, ginger and cardamom.