Idli batter (check recipe for Idli)
Onion - 2 nos finely chopped
Green chillies - 3 finely chopped
Curry leaves - 2 spring finely chopped
Grated coconut - 2tbsp
Mustard seeds - 1tsp
Urad dal - 1tsp
Oil (preferably Sesame oil)

Paniyaram pan

Heat a tablespoon of oil in a kadai, add mustard seeds, curry leaves, urad dal and onion, saute for 2-3 minutes . Now add green chillies, grated coconut and fry for another 2 minutes. Remove it from the stove. Allow to cool. Mix it in Idli batter. Add salt to taste. Mix well.
Heat paniyaram pan, add 2-3 drops of oil in each hole of the pan. Pour the batter into each hole, close the lid and cook for around 4-5 minutes. Open the lid and turn each Paniyaram with Paniyaram stick / spoon and cook for another 5 minutes.
Paniyaram is ready to be served with Coconut Chutney.