This is ideal with idly and dosa. It can be prepared ahead of time and stored in the refrigerator. Use fresh coconut for a good taste.
The ingrdients that you need are:
1 bowl of grated fresh coconut
2 tablesppon of roasted groundnuts
4 green chillies roasted in a little oil with curry leaves
2 teaspoon of tamarind pulp
oil for seasoning
Grind all the ingrdients together with some water. Remove into a serving bowl and add the seasoning.