leaves from a large bunch (about 20g/0.7oz) basil, shredded
200g/7oz chestnut mushrooms, quartered
4 tbsp chopped fresh coriander
15²µ/½´Ç³ú fresh coriander (leaves and stalks,) roughly chopped
5cm/2in piece of galangal or ginger, peeled and chopped
3 cloves garlic, peeled and crushed
4 lemongrass stalks, tougher outer leaves discarded
2 shallots, peeled and finely chopped
1 tsp chopped lime zest
400ml/14 fl oz homemade or ready-made chicken stock
400ml/14fl oz tin coconut milk
1 tsp ground cumin
1 tbsp nam pla (Thai fish sauce)
3 tbsp groundnut oil
½ tsp ground black peppercorns
1 tbsp bottled green peppercorns, drained
750g/1lb 10oz free-range chicken breasts or thighs, bones removed
8 lime leaves