1 large ripe avocado, peeled, stone removed, flesh sliced lengthways
1 red chilli, stalk removed, finely diced
4 sprigs fresh coriander
small bunch fresh coriander leaves, chopped, plus extra sprigs to garnish
2 small baby gem lettuces, shredded
1 lime, juice and zest
6 radishes, trimmed, finely sliced
1 shallot, peeled, very finely diced
2 tomatoes, skins removed, flesh diced
8 dashes Tabasco
salt and freshly ground black pepper
4 pinches cayenne pepper
150ml/5fl oz low-fat cr猫me fra卯che
500g/1lb 2oz frozen Atlantic prawns, de-frosted, drained
4 large fresh cooked prawns, heads and shells intact