3 cavolo nero or kale leaves, roughly chopped
chopped fresh coriander, to garnish (optional)
2 garlic cloves, finely chopped
3cm/1录in fresh root ginger, peeled and finely chopped
陆 brown onion, sliced
陆 green or red pepper, sliced
1 spring onion, roughly chopped, plus extra to garnish (optional)
2 tsp salted fermented black soy beans
1 ladleful chicken stock, water, beer or lager (about 5 tablespoons)
1 tbsp oyster sauce
1 tbsp cornflour
1 pinch Chinese five-spice powder
2 tbsp rice wine
1 tsp sesame oil
1 tbsp light soy sauce
1 tsp dark soy sauce
1 tsp sugar
2 tbsp vegetable oil
300g/10陆oz rib-eye or rump steak