Cut the ripe plantain into small cubes.
Mix it with sugar and little coconut and keep it aside.
Mix together required amount of water and salt.
Sprinkle the salt water slowly over the rice flour and mix well.
Continue this process till the flour becomes wet and smooth. :-Do not use too much water. (The perfect stage to stop the process is to take a handful of wet flour in the hand, just press it and open the fist. If the flour remain as a solid chunk without breaking or splitting apart, you can stop the process.)
Add little grated coconut into the prepared flour and mix well. :- To make soft puttu, just grind the wet flour in a mixer.
For preparing puttu, put a layer of grated coconut into the puttu kutti (puttu maker) followed by the plantain mix and rice flour and then again a layer of plantain and finally a layer of grated coconut.
Steam it for 5 to 8 minutes until the steam passes from the top of the puttu kutti.
:- Serve it hot!!!