1 pound beef top sirloin steak, cut into 1/8-inch strips
Rice or chow mein noodles
In a large plastic resealable bag, combine the sugar, 4 tablespoons oil, soy sauce, pepper, onions, garlic and sesame seeds. Pour half into a small bowl; set aside. Add beef to remaining marinade; seal bag and toss to coat. Let stand 15 minutes.
Drain and discard marinade from beef. In large skillet or wok, heat remaining oil over high heat; add beef and reserved marinade. Stir-fry until beef is brown and has reached desired doneness. Serve immediately with rice or noodles.