1/2 cup grated Coconut
1 bunch of Brahmi leaves / Thimare / Ondelaga / Centella Asiatica
Small piece of Ginger or 10-15 Cumin seeds
1 Green Chilly
1 - 1.5 cups Buttermilk / Curd / Yogurt
Salt to taste
1/2 tsp Mustard seeds
3-4 Curry leaves
1/2 tsp Ghee
Put grated coconut, green chilly and ginger(or cumin seeds) in a mixer and grind them into smooth paste by adding sufficient amount of water. (If it is frozen coconut, add hot water while grinding.) Add brahmi leaves and grind them together for about 1-2 mins.
Pour the ground mixture to a vessel. Add buttermilk, salt and mix them well. (If it is yogurt/curd grind it in a mixer for few seconds before adding it to tambli.) Add ghee and mustard seeds in a pan. Once it starts spluttering, add curry leaves and add it to tambli. Mix well before serving. It goes well with rice.