Start by rinsing your choice of lentils and cook them in a pressure cooker with water and a pinch of turmeric until tender.
In a separate pan, heat ghee (or oil) over medium heat. Add cumin seeds, mustard seeds, and dry red chilies.
Once the spices are cooked, add finely chopped onions, garlic, and ginger to the pan. Sauté them until they turn golden brown.
Now, stir in chopped tomatoes along with spices such as coriander powder, cumin powder, red chili powder, garam masala, and a pinch of hing.
Once your tadka is ready, pour it over the cooked dal and add a small piece of chopped jaggery for a pinch of sweetness and give it a good stir.
Add finely chopped fresh coriander for extra fragrance.
Serve your Rajasthani-style tadka dal hot with steamed rice or roti.