Rinse the rice several times under cold water. Then soak for several hours (overnight is best) ensuring the rice is covered by 1-2 inches of water
Put a large pot of water on to boil
Either place rice in cheesecloth in a bamboo steamer or in a sieve covered with a tea towel and pot lid. Place steamer on top of pot with boiling water.
Steam rice for approximately 30 minutes or until soft and slightly translucent
In a saucepan, on low heat, combine the coconut milk, palm sugar and salt. Stir until dissolved.
Transfer cooked rice into a large bowl. Pour 3/4 of the coconut sauce into the bowl. Allow the rice to soak up the sauce (about 5 minutes). Then stir the rice once.
Serve with sliced mango and more sauce