Pressure-cook your dal: big flavour, zero oil
A pressure cooker tenderizes dal and rajma with just water and steam, so you can skip the oil or ghee tadka. That one swap takes a bowl of dal fry from about 245 kcal down to about 180 kcal with the same spices.
Most of the calories in your dal and rajma do not come from the lentils. They come from the oil or ghee you fry them in. A pressure cooker fixes that. It tenderizes dal, rajma and meat with hot steam, so you need no oil to cook them soft. Add the same spices, skip the tadka oil, and the bowl gets much lighter.
A pressure cooker magically makes your food low in calories.
mostly falseMostly false. The cooker itself does not remove a single calorie. What it does is tenderize dal and rajma with water and steam, so you can skip the oil-fry and ghee-tadka step. The calorie saving comes from the oil you leave out, not from the pressure. Skip the oil and the bowl gets lighter; add it back and the calories return.
Your usual dal fry: 245 kcal, mostly from the ghee tadka
A normal home dal fry uses 3 tablespoons of ghee for 4 servings. That ghee tadka is where most of the fat, and most of the calories, come from. The lentils themselves are light and full of protein. One serving lands around 245 kcal, with about 7 g of fat.
Assumptions: Tarla Dalal's dal fry recipe: 245 kcal per serving, 7.0 g fat, 3 tablespoons of ghee for 4 servings. The ghee fat alone is about 63 kcal (7 g x 9 kcal/g), which is roughly a quarter of the whole bowl.
With oil vs pressure-cooked no-oil: the same bowls get lighter
Pressure-cook with no oil, finish with a water tempering
Soak dal or rajma, then cook under pressure with water, onion, tomato and the usual spices. No oil, no ghee. For the flavour of a tadka, heat a dry pan, add cumin and chilli, splash a spoon of water, and pour that over the cooked dal. You get the aroma without the fat.
Assumptions: Same dal fry recipe minus the ghee: 245 kcal - 63 kcal (7 g fat x 9 kcal/g) = ~182 kcal per serving. Range covers small differences in onion, tomato and lentil type. Pressure cooking does not add or remove calories; the saving is the oil you leave out.
Small tips that add up
- Soak rajma for 8 hours first. It cooks faster and softer under pressure, with no oil needed.
- Onion and tomato give the curry body. Cook them down with a splash of water instead of oil.
- A small katori of pressure-cooked dal (about 150 g) is only around 175 kcal with no oil. That is lighter than one butter-naan.
- The pressure cooker tenderizes mutton fast too. The same no-oil trick works for meat curries, though meat carries its own fat.
- Add a squeeze of lemon at the end. It brightens the dal so you do not miss the ghee.
The bottom line
The pressure cooker does not burn calories away. It lets you cook dal and rajma soft with only water and steam, so you can leave out the oil and ghee tadka. That one change takes a dal fry from about 245 kcal to about 180 kcal, and a rajma bowl from about 207 kcal to about 105 kcal. Same spices, same taste, much lighter bowl.