I’m following the dal makhani recipe by Dishoom in London.
The recipe has two steps where the water the lentils are in is discarded and replaced with fresh water.
The first is the water the lentils are soaked in prior to cooking, which is a common step for dried pulses and beans.
After this the lentils are cooked in fresh water. This is then discarded and replaced with fresh water for the final cooking phase.
Is there a reason why both are discarded? Could one water replacement be skipped?
Edit: the recipe as written works fine, but I was curious why the water might be discarded twice as I’ve not encountered that with other recipes using dried beans/pulses.