- Take a bowl add very thin sliced onions, green chillies,ginger sliced,curry leaves and then add it to the onions,salt mix well.in another bowl add basen,rice flour, salt, jeera, baking powder, oil, now add the onion mixture mix well if need sprinkle water and mix well again.Heat oil and deep fry till it is golden brown. Serve hot with tomato ketchup.