Its well worth buying big bottles of light and dark soy sauce and oyster sauce from a chinese supermarket if you can access one (they also sell online) if you like this sort of dish. The big sizes work out so much cheaper and if you consider a bottle or packet of 'stir fry' sauce is usually at least £1 you can save a lot of money and you know exactly what went into your dinner and don't have to waste all those syns. I also used my beloved frozen garlic and ginger paste it is soooo easy and takes all the work out of crushing and grating but please don't use the jarred stuff its really not very nice.
Beef in oyster sauce
1lb thin beef steaks (cut into strips)
2 tbsp oyster sauce
1 tbsp light soy sauce
2 cloves garlic (crushed)
2 tsp fresh grated ginger (or use the frozen paste)
2 tbsp water
1/2 tsp freshly ground black pepper
Spray wok with oil then stir fry the beef strips until brown , add the ginger and garlic and stir fry for a few more minutes.
Add the oyster sauce, soy sauce, water and black pepper and bring to a boil, Reduce heat for 2 minutes to simmer and thats it!
I served with boiled rice and stir fried mixed veg just dressed with some dark soy sauce.
Serves 4 and only 1/2 syn each person.