Coconut sauce.....Boil coconut milk with1/4 cup of water and 1/4 cup of sugar.When the sugar melts add cornflour slurry. Coconut milk will thicken. Off the flame.Sauce should not be too thick.

Wash the rice.Boil it in a vessel with 2 cups of water and salt till 3/4 done.Then mix in 1/2 of the cooked coconut sauce and remaining sugar with the rice and continue cooking and stirring till the rice is little mushy and thick. Let it cool a bit. Pour coconut sauce over the sticky rice and chopped mangoes on the side and serve.