Soak the cashews for 4 hours or overnight. Drain.
In a high-speed blender, blend all of the ingredients until smooth.
Pour sauce into a pan. Cook for 3-4 minutes over medium-high heat, stirring constantly. Sauce will thicken. Remove from stove. Serve as planned.
For the best version of this sauce, tapioca starch is necessary to create the perfect consistency.
Serves 3 to 4