Place the coconut, roasted channa dal, green chilli, ginger and salt with 150ml of water in a food processor and process to a smooth, thick consistency. Transfer to a bowl and set aside.
to temper
Heat gingelly oil in a small pan. Add the mustard seeds. When they splutter, add the cumin seeds and urad dal. Fry until the urad dal till it becomes brown.
Add the curry leaves, red chilli and the asafoetida.
Fry for a minute or until tempered oil becomes aromatic.
Pour the tempered oil onto the coconut chutney. Mix gently and serve.
notes
Fresh coconut will taste much better than desiccated coconut. If you only have desiccated coconut, increase the water to 250ml and use hot water.
Roasted channa dal is available from good Indian grocers. Buy as small a packet as you can.
Gingelly oil is Indian sesame oil. It is very different to the Asian sesame oil, being much less intense in flavour. Substitute with vegetable oil if unobtainable.
This is a fresh chutney and will only last for two days kept in a refrigerator.