Heat oil in a kadai. When the oil is hot, add urad dal, chana dal and hing .Fry on a medium heat, till dal turns golden.
Throw in chopped spring onions and green chillies . Saute till spring onion shrinks a bit
Finally add grated coconut and saute for 1- 2 mins and switch off . Allow to cool .
Transfer the fried ingredients along with salt and tamarind to a mixer jar .. grind to a smooth paste adding little water .
Transfer the spring onion chutney to a serving bowl . If you want .. prepare a tempering using the ingredients mentioned above . Pour it over the chutney .
Enjoy spring onion chutney with dosa , idli , rice , chapathi etc
Notes
If you don't like hing , you can flavor the chutney with little garlic/ ginger . Add few pieces of it while roasting masala. Fry well and grind. But i would prefer roasting with hing ...
I use coconut oil for this .
If you want you can add 1 raw green tomato too while frying .