Buttermilk is a Nourishing drink which cools the body. Ideal for summer but can be consumed throughout the year. It is tradition in the South of India and also in Gujarat. It is simple and easy to make as most households have curd/yogurt in the house. In fact it is a tradition in India to set curds at home every day.
Beat the curds after adding water for a thin consistency
Add the ground masala
Add cumin powder and salt and mix very well
Strain through a thick sieve
Heat oil in a ladle
Add mustard seed
Add curry leaves when mustard seeds splutter
Add to the buttermilk