1/3 cup unsalted peanuts
1 pound boneless, skinless chicken breasts, cut into 3/4-inch cubes
1 tablespoon cornstarch
4 tablespoons light soy sauce
2 tablespoons unroasted peanut oil or other neutral oil
1 teaspoon Sichuan peppercorns
2 dried red chiles, roughly chopped or crushed
2 garlic cloves, peeled and very thinly sliced
1-inch knob ginger root, peeled and very thinly sliced
4 scallions, trimmed and roughly chopped
Cooked white rice, for serving