Rajma
1 cup
Soak overnight or in hot water for 2 hrs
Discard soaking water, rinse rajma.
Pressure cook 15 mins w 2 tsp salt, 4 times water. Let it cool. Keep. Don't drain!
Heat cooking oil.
Fry diced ginger, if desired.
Fry 1 medium onion, chopped fine, on med low until light brown and soft
Add ginger-garlic paste, med low (abt 5 garlic cloves/5 gm), add some tbsps water, cover and cook on med low 7-10 min.
add Haldi, Mirch 1/2 tsp each
3 chopped tomatoes, add a couple of tbsps water, cover and cook 10 min on med low -- uncover increase heat to med high, fry until oil separates. Reduce heat to low.
add 2 tbsp beaten, room-temperature dahi. Mix to incorporate. Make sure oil separates. Add rajma with the water it was boiled in.
Adjust water if necessary.
Simmer for ~30 min, until gravy has thickened. Taste. Adjust salt.
Add garam masala, roasted zeera powder and hara dhania at the end.
Rongi
Same as Rajma except soaking not required
Kala Chana
Same as Rajma except pressure cook 30 mins. Must soak!!
Kabuli Chana
Same as Rajma
Add a pinch of baking soda to kabuli chana when pressure cooking.
No dahi and more tomatoes.
Add Tamarind to taste in the last few minutes of simmering.