Wash rajma under running cold water till water runs clear. If using canned beans then no need to soak or pressure cook them. Just rinse under the water and use beans in the recipe.
Soak them in enough water for at least 8 hours or overnight.
Now discard the soaking water.
add rajma to the pressure cooker with 1 ½ cups of fresh water. Close the lid and put the weight on.
Cook it for 1 whistle on HIGH then reduce the heat to low and cook for another 10 minutes.
Let the pressure go down by itself and then open the lid.
Making dahiwale rajma curry recipe:
Heat the oil in a pan on medium heat.
Once hot add chopped onions. Add salt to speed up the process.
Cook till onions are soft and translucent or light pink in color.
Now lower the heat or remove the pan from gas. Add whisked yogurt.
And immediately mix it to prevent it from curdling.
Turn the heat back on medium. Bring it to a simmer.
Cook with stirring every 2 minutes till it becomes thick paste and you will notice the fat is appeared on the sides.
Now add turmeric powder, red chili powder and garam masala. Mix well and cook for a minute.
Now add cooked beans. Mix well.
Also add its cooking water. If needed add fresh extra water.