Best Idly-Dosa Batter Soft idlis and crisp dosa batter 4 cups Idli rice1 - Whole black gram (Uzhunnu)1 soup Cooked boiled rice1/4 tsp Fenugreek (Uluva/Methi)Salt (As reqd) Soak idli rice overnight in water.Soak whole black gram with fenugreek too overnight.When u grind, grind black gram with fenugreek first.Once that is ground fine, add your idly rice and cooked rice(preferably leftover rice) and grind everything into a batter.Keep Idly-Dosa Batter overnight in a warm place to ferment.Add salt before making idlis or dosas.:- Make idlis in the first two days of grinding a batter and dilute the batter a bit when u make dosas. :- For idlis, batter should be thicker than ketchup consistency wise. Kerala