Half fill a large saucepan ... 4 tablespoons of vinegar; boil. Add ribs and simmer for 25 minutes; ... inch of oil in wok and fry ribs until ... pineapple, onion and pepper.
In saucepan, combine beef stock, vinegar, soy sauce, brown sugar ... and pepper. Place ribs in small casserole. Pour sauce ... sauce. Makes 4 servings.