Add buttermilk ,coconut milk to a bowl and whisk well . Add salt mix and keep this mixture aside,
Using a vegetable chopper I have very finely chopped the onion , green chili and ginger,
Heat oil in a pan , Add jeera ,mustard and dry red chili . Once it splutters add finely chopped onion, ginger and chili. Saute until the onions turn translucent,
Add asafoetida , haldi and . dried crushed coriander leaves and curry leaves . Mix well.
Turn off the heat and allow it to cool.
Once this mixture reaches room temperature pour the butter milk mixture and mix well.
Serve with Rice or Ragi Mudde and enjoy!!!!!!!!!!!!!
Notes
I have fresh red chili here. You can use green chili instead and increase or decrease the quantity as per your spice tolerance.
In case you do not have butter milk mix half cup of sour yogurt and half cup water and whisk well.
I add dry mango powder if the buttermilk is not so tangy.
You can use fresh coriander leaves too.
I don't add garlic . It is completely optional and you can add if you like.
I use curd chili sometimes for tempering,
Don't boil after adding buttermilk and coconut milk.
In case you don't have coconut milk you can also add fresh coconut ground to a fine paste.