Idly rice-2 cups
Rice flakes(poha,aval)-1/4 cup
Buttermilk-3 to 4 cups
Salt to taste(i used 2tsp)
Cooking soda-1/4tsp
Oil-to make dosa
Method
Soak rice & aval separately in buttermilk for 10 to 12 hrs.Next day grind it with salt to a smooth batter.Mix cooking soda just before making the dosa.Heat a tawa,smear little oil & pour a ladle of batter & slightly spread it.Close lid & cook it only one side like oothapams on medium flame.Serve it with any chutney.
Courtesy:Mrs.Mallika Badrinath