Extract 1st coconut milk extract and 2nd coconut milk extract (onnampaal and rendampaal)
Boil Potatoes, onions, Ginger, Green chilli in water with salt. Make sure to add water enough only for vegetable to get cooked.
Once potatoes are cooked, add 2nd extract coconut milk. (rendaampaal)
Let it just come to a boil in medium flame.
Switch off and add 1st extract coconut milk (onnampaal). Mix well and close. Let it sit for few minutes.
Drop in few curry leaves and pour little coconut oil on top of gravy and mix well. Coconut oil adds up more taste to the dish.