It's a jar of House of Tsang Szechuan Spicy Sauce, rice wine vinegar, garlic and ginger through the microplane, about 1 tsp sesame oil. I will sometimes do it from scratch, it's basically the same except with a shit ton of soy sauce, 1+ cup, pepper flakes or chili oil, then you whisk up a couple tbsp corn starch into cold water and add it once the sauce is heated to thicken.
It's a jar of House of Tsang Szechuan Spicy Sauce, rice wine vinegar, garlic and ginger through the microplane, about 1 tsp sesame oil. I will sometimes do it from scratch, it's basically the same except with a shit ton of soy sauce, 1+ cup, pepper flakes or chili oil, then you whisk up a couple tbsp corn starch into cold water and add it once the sauce is heated to thicken.