This spicy, horseradish-infused sauce isn't like any other you've had. You'll have to come back (get it?) for more!
You can make this using soy milk instead of onion cream, but you will need to add 1/4 teaspoon onion powder for flavor and at least 1 teaspoon of ground flax or chia seeds for thickening. Allow to stand for at least 15 minutes before serving.