Tender lentils slow-simmered with warming turmeric, finished with a sizzling tarka of golden ghee, roasted cumin, and fresh coriander.
Soak the whole urad dal overnight, then drain.
Pressure-cook the dal with 4 cups water until completely soft.
Melt 2 tbsp butter, pop the cumin seeds, and sauté the onion until golden.
Add the tomatoes and red chili powder, and cook until the fat separates.
Add the cooked dal and salt, and simmer 20 minutes, stirring often.
Stir in the cream and remaining butter, and serve hot with naan or rice.