1 tablespoon soy sauce
1 tablespoon Chinese wine or sherry
3 tablespoons tomato sauce
2 tablespoons white vinegar
2 tablespoons sugar
3/4 cup water
1 tablespoon cornstarch
1 tablespoon cold water
1 small onion, peeled, halved and thinly sliced.
2 tablespoons peanut oil
1 garlic clove, finely minced
1/4 teaspoon finely grated fresh ginger
1/2 cup sliced water chestnuts
1/4 teaspoon dried crushed red chilies
1 small green bell pepper, chopped
1 (8-ounce) can pineapple chunks, drained
1.Combine soy sauce, wine, tomato sauce, vinegar, sugar and water in a bowl and stir until sugar dissolves.
2.In small cup mix cornstarch with about 1 tablespoon cold water.
3.Heat peanut oil in large frying pan, add onions, garlic, ginger and the remaining vegetables, except pineapple, and stir-fry for 2 minutes. Add sauce mixture, bring to a boil, then stir in cornstarch mixture and cook, stirring constantly, until thickened. Remove from heat and stir in the pineapple.