Keep all ingredients ready, peel shallots and garlic. Clean other dry ingredients like seeds so that it is free of dust and stone particles.
Clean mustard seeds about 2 tsp
Clean cumin seeds and pepper corns a tsp each
Clean fenugreek seeds
You can use garlic without peeling also it is good for health but wash and dry thoroughly
About a tsp of turmeric and rock salt.
Grind onion, garlic, curry leaves and few cumin and pepper corns.
Just grind in pulse mode or chop half and grind half of the contents.
Transfer to a plate add remaining cumin seeds and pepper corns. Add mustard seeds and mix well. Lastly add salt and turmeric.
Mix well by hands and sun dry for 2 days covered with a kitchen towel.
This is the second day pic. Mix well and dry.
On the third day morning when the contents are still moist try shaping to balls. Moisture is need to form balls or else you cant shape it.
After making balls sun dry again for 3-4 days and store it in container. A tsp of this content is useful for seasoning and tempering sambhar, kuzhambu etc.
Onion vadagam is ready.