Mix rava, rice flour and 2 cups water and make thin batter.
Add some hing, salt, green chilies, grated coconut, cashew nuts into it. Crush some peppercorns and cumin seed in it.Take tawa (pan) on gas. Heat some butter on it. Fry peppercorn and cumin seeds for some time.
Add rava batter and spread it properly.. cook it nicely and serve hot delicious rava dosa with green chutney or sambar.