I always have Dosai batter in stock and it comes handy while trying to make quick breakfast or dinner. But at times I do forget the bowl of batter lying in fridge and it does become a bit sour after two days. Instead of wasting the sour batter you can try making this ragi rava roast[Finger Millet flour + Semolina crepes] and am sure your family will enjoy this breakfast.I served coconut chutney and tomato chutney as side dishes. However you could serve it sambar or molagapodi [GunPowder] too The following measurement approximately yields 12 medium sized dosas. Unlike dosa batter, this ragi rava batter has to be watery like our regular rava roast. Also you need to pour batter on a hot Dosa Tawa. If the temperature is not correct then it will difficult for you to remove dosa from the pan