Steam the soaked sticky rice until cooked, 15 to 20 minutes. Boil the coconut cream, sugar
and salt together until the sugar has melted. Pour the mixture into a bowl, add the rice and let absorb for 30 minutes.
For the sauce: Mix together the coconut cream, rice flour, salt and 2 tablespoons water.
Serve the rice on the plate, topped with the mango and coconut sauce.