- Wash and soak dal in the pressure cooker with 1 1/2 cup of water along with 1 teaspoon of oil and ¼ teaspoon of turmeric powder. Pressure cook the dal for 2-3 whistles. Once the dal is cooked, with the help of back of a wooden spoon mash it properly. Keep aside. Heat a non-stick pan with oil, add mustard seeds, urad dal and cumin seeds. When they crackle, add asafoetida along with curry leaves. Add chopped onions along with slit green chillies, salt and fry till the onion’s changes colour. Then add chopped tomatoes with turmeric powder, chilli powder and cook till they become soft. Next, add the cooked dal along with ¾ cup of water and cook for 5 minutes on low- medium flame. Add coriander leaves and turn off the flame. Transfer the dal into a bowl.