How can we make Kachiamoru (Spiced Buttermilk)

Kachiamoru (Spiced Buttermilk)
You will need:
1. 6 cups fresh buttermilk (not sour)
2. ¼ tsp turmeric powder
3. A few curry leaves
4. Salt to taste
5. 1 cup coconut, grated
6. ¼ tsp chilli powder
7. 3 button onions
8. ¼ tsp cumin seeds

For the seasoning:
1. 1 dsp refined vegetable oil
2. ¼ tsp mustard seeds
3. ¼ tsp fenugreek seeds
4. 2 dry red chillies, halved

Method:
1. Mix into the buttermilk turmeric powder, curry leaves and salt. Grind ingredients 5 to 8 and add. Heat the mixture over a low flame, stirring continuously. When the first bubble appears, remove from flame and continue stirring till it cools.
2. Heat oil. Splutter mustard seeds, add fenugreek seeds and red chillies and fry lightly. Cool and add to buttermilk.