PREPARE: Soak the raw cashews overnight in the water, or at least three hours. Strain before starting the sauce recipe and discard the old water.
START COOKING: Sautee the chopped onions in a little water for a few minutes till they are translucent, keeping them moist so they don't stick.
Add the fresh garlic and keep adding a little water while it softens in the pan.
Put the cooked onions and garlic into a nutribullet, high speed blender or vitamix with the drained cashews, the remaining vegetable stock, white wine, nutritional yeast, onion granules, nutmeg and a pinch of salt and pepper.
Blend until the whole mix is beautifully creamy.
The sauce will thicken more as it rests and can be diluted a little later if needed.