Why is your dal makhni bitter?

Dal makhni may taste bitter due to several reasons, such as overcooking the lentils, which can release bitter compounds, or using burnt spices or onions during the cooking process. Additionally, if the dish is seasoned with too much salt or if old or stale spices are used, they can impart a bitter flavor. It's also possible that the lentils are not properly rinsed before cooking, allowing residual bitterness from impurities to affect the final dish. Always ensure fresh ingredients and careful cooking to avoid bitterness.