Thenga Chammanthi is Coconut Chutney and also refers to one of the many kinds of Chutneys in Kerala which is made from fresh grated Thenga (Coconut meat) grinded with other ingredients, such as Inji (ginger), Tamarind, Chumannulli (shallots/pearl onions), Kanthari Mulaku (bird’s eye chillies), salt until it turns into a paste, then Kadugu (black mustard seeds) and Curry leaves are added.
Thenga Chammanthi is often served with with Idli, Chappati/Roti and Dosa in Kerala.
Here is my "adopted Mom" in Allepey, Kerala, India grinding Thenga and spices in the traditional grinders used to make Chammathi called Ammikallu (Please see related article on Ammikallu)
Below are pictures of Thenga Chammanthi served with Dosa and Chappati
Thenga Chammanthi after its formed into a ball