One among my favorites is the uthappam.Ingredients:Sour leftover Dosa batter - 2 CupsOnion - 1 Finely choppedTomato - 1 finely choppedCoriander Leave - a small bunch finely choppedGreen Chilli - 2-3 finely chopped.Oil - 2 tbspMix all the ingredients except the batter.