Polynesian Stir-Fry Pork

Drain pineapple, reserving juice; set aside. For sauce, in a small bowl, combine cornstarch and water until smooth. Stir in the soy sauce, preserves and reserved pineapple juice; set aside. In a large nonstick skillet or wok, stir-fry the pork in 2 teaspoons oil until no longer pink. Remove; keep warm. Stir-fry the onion and peppers in remaining oil for 3 minutes. Add pineapple; stir-fry 2-3 minutes longer or until vegetables are crisp-tender. Stir cornstarch mixture and add to the pan. Bring to a boil; cook and stir for 2 minutes our until thickened. Add pork; heat through. Serve with rice. Just before serving, sprinkle each serving with peanuts if desired.