- Wash the rice flakes, rice and soak in butter milk overnight. 
- The next day grind the mixture  to a fine paste. 
- Add Salt and sugar  while adding little water if necessary. 
- Remove in a vessel and add the soda and mix well. 
- The batter should be thick enough to pour in a small saucepan. 
- Keep it for 2 hours for fermentation. 
- Pour a ladle full of the dosa batter into it the pan. 
:-No need to spread it as it is a thick and fluffy type of dosa. 
- Keep it covered and after a few seconds pour a little  oil around the edges of the dosa and cover it again till it is cooked. 
- Take care to have a medium flame. 
- After a few minutes, turn the dosa. Keep it covered again. 
- Remove when both sides are done. 
- :- Serve hot with tomato or coconut chutney.