Add 1 cup ragi flour to a mixing bowl.
Add salt to taste and mix well.
Gradually sprinkle approximately ¾ cup water, adding it little by little while mixing with your fingertips.
Continue mixing until the flour reaches the correct puttu consistency. When pressed in your hand, it should hold its shape and crumble easily when gently broken apart.
Pour water into the puttu steamer and bring it to a rolling boil.
Lightly grease the inside of the puttu maker (kuzhal) with a little oil or ghee to prevent sticking.
Fill the puttu maker with the prepared ragi flour. If desired, add grated coconut between the layers.
Attach the puttu maker to the steamer and steam for 12 minutes.
Carefully remove the cooked ragi puttu from the puttu maker.
Serve hot with banana, nattu sakkarai, freshly grated coconut, kadala curry, or vegetable stew.