350 g (12 oz) pork fillet
5 ml (1 tsp) sunflower oil
2.5 cm (1 in) fresh root ginger, grated
1 fresh red chilli, seeded and finely chopped
5 ml (1 tsp) Chinese five-spice powder
15 ml (1 tbsp) sherry vinegar
15 ml (1 tbsp) soy sauce
225 g (8 oz) can pineapple chunks in natural juice
175 ml (6 fl oz) 3/4 cup chicken stock
20 ml (4 tsp) cornflour
15 ml (1 tbsp) water
1 small green pepper, seeded and sliced
115 g (4 oz) baby sweetcorn, halved
salt and ground black pepper
sprig of flat-leaf parsley, to garnish
boiled rice, to serve