I usually make this on upaas/vrat days. Here's how I make it:
1/4 cup roasted peanuts
1/4 cup frozen or fresh shredded coconut
1/2 cup yogurt
1 - 2 green chillies per heat level desired
4 - 5 sprigs of cilantro
Salt & Sugar to taste
1 tsp grated ginger
1 tsp lemon juice
Blend all the ingredients until smooth. No additional water is needed, unless you want to make a runnier chutney.
We had this chutney with bhajani thalipeeth for breakfast on Saturday.
This Dahi Chutney goes to the CMT - Chutney event at Joy of Cooking.