Add lentils to a large bowl and wash 3-4 times under running water till the water runs clear.
Place the dal in pressure cooker, add 3 cups water and soak for 20-25 minutes. Meanwhile you can peel and dice the green mango, chop garlic etc.
Once soaked, place the pressure cooker on a medium high stove and bring to a rolling boil. Using a spoon, skim and discard the white foam using a spoon.
Add the chopped mango, turmeric powder, salt and mustard oil. Close the lid and pressure cook on low medium heat for 8-10 minutes (about 3-4 whistles). Please adjust time and whistles depending quality of lentils. For IP, close the lid and pressure cook on high pressure for 8-10 minutes. Let pressure release naturally.
Open the lid and make sure that the dal is cooked fully. Using back of a spoon or a whisk, mash the dal until creamy. This dal tastes good when it isnt too thick so add cold water to adjust the consistency if needed. If you do add water, simmer the dal for 3-5 minutes.
Tempering (Dal Tadka)
Heat ghee in a kadai/cooking pot and add hing and dry red chillis and cumin seeds. Let crackle.
Add the chopped garlic. Let brown lightly. Switch off the heat and add the red chilli powder. Immemdiately add the cooked dal and mix with the tadka. Alternatively, you can prepare the tempering in a small pan and add on top of cooked dal. Done!
Ganish with fresh chopped cilantro if you wish. Serve.
Notes
Recipe Tips
Avoid using old lentils that are lying around for more than 3 months in your pantry.
Always taste the green mango before adding to dal. Once the dal and mango are cooked together, hardly much can be done to reduce the tanginess.
On the same lines, add more raw mango after tasting them in case you prefer to make a tangy dal.
The taste of dal from this recipe is mellow. Add extra spices for heat or flavor during tempering if you wish.
If you wish, substitute with matar dal (split yellow pea lentils), red lentils (masoor dal) or chana dal (bengal gram lentils).
Substitute mustard oil with any cooking oil of choice or ghee if you wish.
Raw Mango (Green Mango)- I purchase green mangoes from indian grocery stores during spring and summer months.
Serving Mango Dal
Serve mango dal with steamed basmati rice or jeera rice and dollop of ghee.