Pressure cook the dal adding 3 cups of water for 3-4 whistles.
Heat oil or ghee in a Kadai and add the cumin and let them splutter.
Then add asafetida, minced ginger-garlic, chopped green chili, curry leaves, and saute for 15 secs.
Next, add the onions and saute till the onions turn light brown in color.
Add tomatoes and cook till tomatoes turn soft, takes 2-3 minutes.
Add all the spice powders – turmeric, red chili powder, coriander powder, or garam masala powder and fry for a minute.
Now add the cooked and mashed dal, stir well. Add water to adjust consistency and salt to taste.
Boil dal for 2-3 minutes on a medium-low flame. Finally, garnish with chopped coriander leaves.
Dal Tadka or Dal Fry is ready, add extra tempering (tadka) and serve hot with boiled rice, quinoa or roti.