In a bowl, soak rice in water at least overnight and cover. Grind rice to a consistency of thick batter. Add sugar, salt and baking powder. Stir and combine well.
Prepare your molds. Then, slowly pour batter into molds, about 1/3 only. Add the bukayo filling (1 tablespoon) then cover top with additional batter.
Arrange in steamer and steam 30 minutes or if toothpick inserted in center of puto comes out dry. Semi wrap each with banana leaves.
