Bring water to a boil and add the pandan leaf powder, cooking until thickened, then remove any excess solids. (Alternatively, mix the pandan leaf powder directly with the glutinous rice flour.) Pour boiling water into 1/3 of the glutinous rice flour and stir well until the dough is thick and hard to mix, then let it rest for 30 minutes. Mix in the remaining dry flour by hand until the dough is smooth and no longer sticky. Divide the dough into portions matching the number of filling balls. Wrap the filling with the dough, roll into balls, and coat with dry flour or glutinous rice.

Line a steamer with a layer of glutinous rice, place the dumplings on top, and cover with another layer of glutinous rice to fully cover the dumplings. Steam for about 20 to 30 minutes until the rice and dumplings are cooked through. Serve hot with sesame salt.