Puttu is a south Indian special snacks made out of rice flour. It is very soft and it is mainly because of the flour we use to prepare it. Raw rice is used for this flour. The rice can either be ground at home or can be ground at a flour mill. This flour can also be used to prepare murukku or kolukkattai. My mom used to make a huge amount of this flour and stock it and it would last 3-4months.
Soak raw rice for two hours
Drain water and spread it on a plate or cotton cloth and allow it to dry until it is just moist.
Grind the rice in the mixer. You can also grind it in flour mill where they have special equipment to grind moist rice.
Dry roast the flour in a pan until there is no moisture left. The flour should feel like dry sand when touched. If there is even a small amount of moisture in it, the flour cannot be stored for long period and it will turn bad. So be careful.
Sift the flour through a sieve. Grind the coarse bits in the sieve and add it to the flour.
Store it in airtight jar.