Tender lentils slow-simmered with warming turmeric, finished with a sizzling tarka of golden ghee, roasted cumin, and fresh coriander.
Pressure-cook the toor dal with turmeric and 3 cups water for 3-4 whistles until soft.
Heat mustard oil until it just smokes, then cool slightly; crackle the mustard seeds, fennel seeds, nigella seeds and dried red chilies.
Pour in the cooked dal, add salt and half a cup of water, and simmer 10 minutes.
Mash lightly and serve hot with rice or roti.