Heat a pan adding oil, mustard, cumin seeds and curry leaves. Saute and let them sizzle. As you see mustard seeds crackling, include chopped onion and green chillies. Saute till the onion turn translucent.
When the onions are soft, add turmeric powder, water and salt. Let it boil.
Next include tamarind extract also. When it is boiling, slowly add gram flour while stirring continuously. Be quick in stirring to avoid lump formation.
Continue cooking till the mixture comes together. Switch off and transfer it over a tray. Sprinkle over coriander leaves, grated coconut and sesame seeds. Let it cool down.
As it cools down, you can make pieces. An easy side dish Jhunka vadi is ready to relish with rotti and chapati.