Nonya-style korma chicken curry

I remember the old lady who comes to my father’s shop in the evening, to visit and to sell curry to my grandmother She carries a basket up the stairs with her containing a little warmer, and on top, a nonya curry. The two large bowls are yellow-red-orange in colour with a thin layer of oil on top and a rich presence of coconut milk. She uses a good quality chicken just cooked, not dry but succulent. They tell me that this lady makes only this dish.

This is a very common Chinese vers