In a food processor, coarsely grind the coconut, green chili, garlic, cumin seeds and turmeric powder together. Keep aside.
Place a non-stick pan over medium heat, add oil. Let it turn hot.
Add mustard seeds, let it splutter.
Add whole dry red chili and curry leaves, saute for a couple of seconds.
Add onion, season with salt and saute till translucent.
Add cluster beans and add ¼ cup water, cook covered till cluster beans have turned tender.
Add the ground coconut mix to the cooked cluster beans, season with enough salt, combine well and cook for a few minutes till the raw smell of coconut goes away and the mixture gets dry.
Remove the pan from the heat and keep covered for sometime.
Serve as a side dish with rice or roti.
Recipe by Cooking with Thas - Smart Cooking, Smart Living at https://thasneen.com/cooking/cluster-beans-thoran-cluster-beans-coconut-stir-fry/