1 or 2 chopped or crushed green chilli (or to taste)
a small fistful chopped coriander
1 teaspoon oil
1 teaspoon cumin seeds
few curry leaves
salt to taste
Method
In a deep pan mix together yoghurt, coconut milk, water, sugar, salt and give it a good mix. Alternately you can wiz it all up with a hand blender as well.
Add the chilli and finely chopped coriander.
Heat oil, add cumin seeds, once they crackle add curryleaves. Add the tempering to the prepared yoghurt mix.