Grind cashews in a dry blender or coffee grinder, in batches.Add ground cashews and remaining ingredients to a sealable container (at least 5 cups capacity).Seal and shake vigorously to mix.Mix powder in a 1:2 ratio powder to water or dairy-free milk and heat over medium heat before adding to prepared pasta.For example: mix 1/2 cup powder and 1 cup water or soy milk, heat over medium heat until thickened and mix with 1 pound prepared pasta.Store refrigerated for up to a month or freeze.