Extract coconut milk and keep it ready in a bowl.
Place the pan or bowl with coconut milk on the stove. Use the lowest possible flame.
Now take another small pan and heat oil in it.
Once the oil is heated, add mustard seeds, cumin seeds, and turmeric powder.
Now add sliced green chili, curry leaves.
Take the pan out of the heat once the chili is fried. It will take a minute or so.
Now add the green chili mixture to the coconut milk.
Add salt, coriander seeds powder to the coconut milk and heat it on very low flame. Switch off the flame once the coconut milk is heated enough.
Coconut milk is ready to serve! Tastes best with hot rice.