Drain the water and add the dal to a pressure cooker.
Add 4 cups of water, salt, and turmeric powder to the cooker and stir gently.
Close the lid. Pressure cook for one whistle on high heat.
Reduce the heat to low and cook for 10 minutes.
Remove the cooker from heat and let the pressure release naturally.
Open the lid and whisk the dal well using a wire whisk.
Add some boiling water if the dal is thick for your liking.
In An Instant Pot
Add the rinsed dal to the instant pot along with 3 cups of water, salt, and turmeric powder to the cooker and stir gently.
Close the lid and set the valve to the sealing position.
Press PRESSURE COOK and set the timer to 8 mins on high pressure.
Once the timer goes off, let the pressure release naturally for 10 minutes.
Release the remaining pressure manually by moving the valve to the venting position.
Open the lid and whisk the cooked dal using a wire whisk.
Add some boiling water if the dal is thick for your liking.
Temper The Dal
Heat mustard oil in a small pan.
Once the oil is hot, add bay leaves, dry red chilies, and panch phoran and let them crackle for 4-5 seconds.
Add onions and fry on medium heat until onions turn golden brown (5-6 mins), stirring frequently.
Pour the tempering over the dal and mix well.
Check for salt and add more if needed.
Garnish with cilantro and serve hot.
Video
Notes
You can skip the onion and make plain masoor dal for a No Onion No Garlic version.Add ¼ cup sliced tomato while pressure cooking the dal for a taste change.Temper the dal only with mustard oil, to give it that authentic Bengali taste.Use fresh homemade panch phoran masala for the best taste.Add more water if you like thinner dal.