Here is what's needed:
2 big Onions sliced
1 tsp Coriander seeds roasted slightly and crushed coarsely
1 small bunch of Coriander leaves chopped fine
2 tbsp Rice flour
Chickpea flour (Besan) as needed
Salt and Chilli powder to taste
Oil to deep fry
1) In a vessel add onions, crushed coriander seeds, chopped coriander leaves, salt and chilli powder. Mix well with hand.
2) Add rice flour and chickpea flour (add enough to cover all the pieces of Onion). Mix well. Keep it for five minutes. When salt is added onions release its juice. Use the same to make the batter. If needed you can add little water so as to cover the onions with flour evenly. The mixture should not turn watery but should be semi-dry.
3) Heat oil. Do not bring it to smoking hot. Drop in spoonful of batter and fry till golden and crispy on medium flame.
Serve hot with a cup of tea or coffee.