Ingredients:

Buttermilk – 4 cups

Water – 1 cup

Mustard seeds – ½ tsp

Onion – 1 tbsp. (finely chopped)

Green chile – 3 nos. (cut in halves)

Ginger – ½ tbsp. (finely chopped)

Turmeric powder –1/2 tsp

Curry leaves

Salt

Oil

Preparation:

Heat oil in a saucepan and splutter mustard seeds and curry leaves. Now reduce the heat, add the ginger, onion and green chile. Turn the heat to low and pour the buttermilk and water. To that add salt and turmeric powder. Stir and turn off the heat.

Note: Never boil the buttermilk for it will curdle.

   Tip: Store bought buttermilk is just good as well.