1 . Heat vegetable oil in a wok or frying pan. Add garlic and ginger and stir-fry for 1 minute. Add onion and beef and stir-fry for 3 minutes or until beef is browned. Remove meat mixture from pan and set aside.

2. Heat sesame oil in pan, add capsicum, bean sprouts and snow peas and stir-fry for 1 minute. Add black bean sauce, soy sauce, stock, sugar and cornflour mixture. Cook, stirring, until mixture thickens slightly. Return meat mixture to pan. Cook for 2 to 3 minutes longer or until heated through.