225 g (8 oz) raw or cooked prawns, peeled
30 ml (2 tbsp) tamarind sauce
juice of 2 limes
350 g (12 oz) lean pork, diced
1 small green guava, peeled, halved and seeded
1 small under-ripe mango, peeled, stoned and chopped
1.5 litres (2 1/2 pints) 6 1/4 cups chicken stock
15 ml (1 tbsp) fish sauce or soy sauce
275 g (10 oz) sweet potato, peeled and cut into even-sized pieces
225 g (8 oz) unripe tomatoes, quartered
115 g (4 oz) green beans, halved
1 star fruit, thickly sliced
75 g (3 oz) green cabbage shredded
salt and ground black pepper
lime wedges, to garnish