Toast szechuan peppercorns in a hot dry skillet over medium heat, until fragrant, about 1-2 minutes. Crush.
Place all ingredients in a medium bowl or small jar and whisk until well combined.
If using as a stir-fry sauce, and you would like to thicken it, whisk in 2-3 teaspoons cornstarch. Try adding a few dry Chinese or Arbol chilies (5-10) to the stir-fry for a bit of heat, right before adding the Szechuan Sauce. Do not eat the chilies. 😉
If using as a marinade, forgo the cornstarch and make sure to season what you are marinating (chicken, tofu, beef) with salt. The marinade alone will probably not be salty enough.
If using as a dipping sauce, place in a small saucepan, whisking in 2-3 teaspoons cornstarch to thicken, and bring to a simmer for 1 minute.
