Mint-coconut chutney

This is modified from a recipe posted by Namita Tickare of Namita's Kitchen.

Grind together 1/2 bunch mint leaves, 1/2 bunch coriander leaves, 2 green chillies, 1/2 a grated coconut, till smooth. Add salt to taste and 1 tsp vinegar. Temper with curry leaves and mustard.