First wash the two dhal and soak for 2 hours then grind it with green chilli, red chilli and jeera to a corse mixture. Steam this for ten mins. Steam do not pressure cook it. Then take it out and grind it again in the mixy. Keep this aside.
Take a deep kadai add oil to it then mustard seeds Chanadhal hing and turmeric powder curry leaves then cook the beans with salt very well add the protein packed dhal once it’s cooked and mix with the beans. Serve with rice and vathakulambu.
