Cut the sirloin steak into thin strips
Cut the broccoli into small florets
Grate the ginger and garlic and all the soy sauce, Worcestershire sauce, cornflour, rice wine vinegar and sesame oil
Heat your wok and add a little oil.
Stir fry the broccoli for 3-4 minutes, adding some water to steam it
Add a little more oil and stir fry the beef for 3-4 minutes
Add the cashew nuts and stir fry for 1 minute
Add the sauce and cook for a further minute
Add some more water or cornflour if needed
Serve with rice or noodles. Add to the wok and mix thoroughly.