I formulated this ratio based on a recipe, which Amma used to make and send to my sister, 40 yrs ago, when she was in London. I have, no doubt, made some changes!
Idli Rice (perboiled rice) - 2 cups
Urad dhal - 1 cup
Thick poha - 1/2 cup
Rava is kept in the front.
Mix idli-1.jpg
Mix & send to mill & grind like Bombay rava. Do not sieve. Close-up of rava.
mix idli.jpg
Take a cup of this & add 1-11/4 cups of water & soak for 2 hrs.Then add salt & give a run in the mixie for a uniform texture.
Transfer to a steel vessel & keep it for fermentation. I find that keeping inside the rice container is very helpful for fermentation. Even if the dough does not visibly rise much, fermented texture is good enough.
Make idlis as well as dosas.Dosas come out thin & crisp.
mix idli-white.jpg mixdosai-1.jpg mixdosai-2.jpg