2 c. whole raw cashews (not pieces, which are often dry), rinsed very well under cold water
Put the cashews in a bowl and add cold water to cover them. Cover the bowl and refrigerate overnight.
Drain the cashews and rinse under cold water. Place them in a blender with just enough fresh cold water to slightly cover them. Blend on high for several minutes until very smooth. (If you’re not using a professional high-speed blender such as a Vitamix, which creates an ultra-smooth cream, strain the cashew cream through a fine-mesh sieve.)