250g/9oz broccoli, cut into tiny florets
1 red chilli, seeds removed, thinly sliced
2cm/¾in piece ginger, peeled and thinly sliced
½ lemon, juice only
150g/5½oz oyster mushrooms, thickly sliced
2 large shallots, very thinly sliced
6 tbsp black bean sauce
salt and freshly ground black pepper
2 tbsp dark soy sauce
2 tbsp sunflower oil
350g/12oz raw peeled king prawns