Sweet and Sour Sauce
1/2 cup cider vinegar
1/2 cup firmly packed brown sugar
1/2 cup catsup
1/4 cup unsweetened pineapple juice
1/4 cup cornstarch
2 tablespoons soy sauce

Stir all ingredients together. Set aside.

Pork and Vegetables
2 pounds lean boneless pork (such as shoulder or butt),
    trimmed of excess fat and cut into 3/4-inch cubes
1 egg, beaten
1/2 cup cornstarch
6 tablespoons vegetable oil
1 small green bell pepper, cut into 1-inch squares
1 small red bell pepper, cut into 1-inch squares
1 small onion, cut into wedges, layers separated
1/4 pound Chinese pea pods (snow or sugar peas); or
    1 package frozen Chinese pea pods, thawed and drained

Dip pork cubes in beaten egg; drain briefly and roll in cornstarch to coat lightly; shake off excess. Place a wok over high heat. When wok is hot, add 2 tablespoons of the oil. When oil is hot, add half the pork; stir fry until evenly browned (5 to 7 minutes).

Lift pork from wok and set aside. Repeat to brown remaining meat, adding more oil as needed. Add remaining oil (about 2 tablespoons) to wok. Add bell peppers and onion; stir fry until vegetables are tender-crisp to bite (about 2 minutes).

Add pea pods, then stir sauce and add. Stir until sauce boils and thickens; return pork to wok and stir until heated through.

Makes 6 to 8 servings.