450 g (1 lb) piece of lean rump steak
15 g (1 tbsp) cornflour
60 ml (4 tbsp) oil
3 green peppers, cored, seeded, halved and thinly sliced
1 green chilli, seeded and thinly sliced
1 small onion, peeled, halved and thinly sliced
2 cloves garlic, sliced
2.5 cm (1 in) piece root ginger, peeled and thinly sliced
2.5 g (1/2 tsp) castor sugar
283 g (10 oz) can baby corn, drained
15 - 30 ml (1 - 2 tbsp) soy sauce, to taste
30 ml (2 tbsp) sherry