1 red chilli, seeds removed, sliced into thin strips
2 tbsp chopped fresh coriander
2 garlic cloves, roughly chopped
2cm/戮in piece ginger, finely chopped
1 stalk lemongrass, lightly crushed with the edge of a knife
1 onion, chopped
1 head pak choi, white and green parts separated, finely chopped
5 large spring onions, trimmed, roughly sliced on the diagonal
1 litre/1戮 pints hot chicken stock
150g/5陆oz egg noodles
1 pinch ground allspice
pinch salt
1 dash soy sauce
2 tsp vegetable oil
2 chicken thighs, skin and bones removed, flesh chopped into strips