vegetable oil spray
115 g (4 oz) skinless chicken breast, cut lengthways horizontally
3 limes, halved, for squeezing over
1 tbsp finely shredded lemon grass
1 small green chilli, finely chopped
3 tbsp lime juice
1 cm (1/2 inch) galangal or root ginger, peeled and thinly sliced into strips
1 1/2 tsp sugar
2 tbsp white wine vinegar
90 ml (3 fl oz) water
1 1/2 tsp cornflour, blended with a little cold water
50 g (1 3/4 oz) deseeded mixed peppers, finely sliced into strips
50 g (1 3/4 oz), peeled weight, carrot, finely sliced into strips
50 g (1 3/4 oz) courgette, finely sliced into strips
50 g (1 3/4 oz) mangetout, finely sliced into strips
50 g (1 3/4 oz) baby corn cobs, finely sliced into strips
50 g (1 3/4 oz) broccoli florets, cut into 5 mm (1/4 inch) pieces
50 g (1 3/4 oz) pak choi, shredded
4 tbsp roughly chopped fresh coriander leaves
25 g (1 oz) rice vermicelli, covered with boiling water, left to cool in the water and drained