Method:
Bring stock to the boil, add the rice, salt , peppercorns, chilli and Kaffir leaves. Simmer gently for 15 minutes.
Shell and devein prawns and add to the soup - continue cooking for another 6 minutes.
Remove soup from the heat, add lime juice and beaten egg, stirring very quickly.
Sprinkle with chopped chives and serve immediately.
