Mix the rice flour, sugar, salt, baking powder and desiccated coconut with coconut milk well until a liquid dough is formed without lumps.
Pour into a silicone muffin pan, fill half full and steam for 35-45 minutes in a wok with a steamer insert or in an electric steamer. The muffins are done if the toothpick sample stays clean.
Let cool, remove from the mold and roll in desiccated coconut.