You will need;
1 cup rice flour
salt and sugar to taste
water to mix into a thin batter
oil to fry
In a bowl, mix the rice flour and water into a very thin batter, add salt and sugar to the mixture. Heat the pan to very hot, once hot, grease it with some oil, pour the thin batter on the hot pan. Cover and cook for 2 minutes, flip and cook the other side. Once done enjoii the crunch net dosa with some chutney or ketchup or as is.