Mapo tofu is one of the most well-known dishes from Sichuan in southwest China ... a local spice from the region. Fermented bean paste, or doubanjiang, adds umami to the dish.

Stir in the mung bean noodles, soy sauce, vinegar, chile oil and the remaining 1/2 teaspoon of Sichuan peppercorns and cook until heated through, about 1 minute. Add the shrimp and season with ...