Take rice and dal in a bowl and wash them well, add fenugreek seeds and soak them for 4 hours. Now drain and add it to a grinder or blender and puree till smooth.
Take it in a large container, add salt and mix well. Leave to ferment for atleast 8 hours or overnight.
Now heat oil in a pan, add mustard and urad dal and let them sizzle.
Add asafoetida and curry leaves and let them sizzle.
Add in green chillies, ginger and onions and saute for few mins. Add salt and mix well.
Add this into the batter and mix well.
Heat a paniyaram pan with some oil, pour ladleful of batter in each hole and cover and cook for 2 to 3 mins.
Flip over and cook.
Serve with chutney or sambar.
Video
Notes
Any finely chopped vegetables can be added into the batter. Vegetables like grated carrots, cooked finely chopped beans, finely chopped cabbage can be added.
You can make kuzhi paniyaram using leftover dosa batter or store bought batter.
Kuzhi paniyaram pan or appe pan are available in amazon or online shops.