1/2 ts Szechuan peppercorns; roaste 2 ts Soy sauce; dark 1/4 ts Salt 1 ts Sugar 1/2 ts Sesame oil Combine beef with marinade; let stand 20 min. Heat oil in a wok or large skillet until very hot. Remove bbef from marinade and add to oil; stir-fry until brown (abt. 2 min). Remove and drain. Remove all but 1 Tbs oil, reheat il and add chili peppers; stir-fry 10 sec. Add beef, orange peel and seasonings. Stir-fry 4 min, mixing well. Serve at once.