Bitter Gourd kaakarakaaya Masala

Bitter Gourd - 6-7, peel, wash and cut into 1 inch rings
 buttermilk - 1 cup
2 spoons tamarind paste
1/4 spoon turmeric
1 small onion, sliced length wise
Masala:
Ingredients for Masala:
1 spoon peanuts
1 spoon red chilli powder
1 spoon coriander powder
1 spoon ginger garlic paste
1 spoon white gingelly seeds (thella nuvvulu)
Grind all the ingredients into a paste
Method:

1. In a pan, add 2 cups of water, buttermilk, a pinch of turmeric, tamarind and bitter gourd pieces and boil till the gourd pieces are soft. Drain and keep aside. This process removes the bitterness from the gourd pieces
2. In another pan, add 3 tb spoons of oil and once medium hot, add curry leaves and bitter gourd pieces, a pinch of turmeric and salt as per taste and fry till golden brown
3. Add onion pieces and fry till onions turn gold brown. 
4. Add the above masala paste to the curry and fry on low heat
5. Add coriander leaves before switching off the stove

This curry is very tasty and goes well with rice