Heat water to boil. Pour 2 tsp sesame oil in it and add rice flour with constant stirring so that it becomes thick. Cover and keep aside for 1/2 hour.Then take even sized balls of this and shape it into a hollow hemisphere. Grease the hand with sesame oil to get the shape Inner stuffing(Poornam): Mix 1 cup grated coconut, 1 cup powdered jaggery, powdered cardomoms - 4 and leave for 5 min.Heat this mixture in low heat with constant stirring until it comes as a paste. At this time add a tsp of ghee and remove from the stove and make Take uniform balls of the poornam and stuff the poornam in the hemisphere and close it by extending the covering flour.Place these in a plate and steam in a pressure cooker or a large vessel until fully cooked.