Kung Pao sauce.
(3/4 c cornstarch / 1/4 c soy sauce / 3 tbsp nutritional yeast / water mixed until non-Newtonian)
It has come to my attention that nonvegans think that vegan food is often fried to make it taste good. This post is not representative of most plant-based food, don't judge - eek!
Don't look at this, it is definitely not mushrooms and tofu sitting in oil, definitely not, no sir.
I would also attempt a homemade sauce next time.