Dal makhani
Dal makhani (pronounced [daːl ˈmək.kʰə.ni]) is a dish originating in Punjab region. A relatively modern variation of traditional lentil dishes, it is made with urad dal (black lentils) and other pulses, and includes butter and cream (makhani is a Punjabi word for butter). History
Kundan Lal Jaggi and Kundan Lal Gujral, both Punjabi Hindu migrants from Peshawar, had already invented butter chicken and were looking to create a vegetarian dish that would complement it. A regular diner at Moti Mahal, the restaurant that Jaggi ran in Daryaganj in Delhi, suggested that something exciting could be created out of urad dal commonly used in traditional dishes, leading to the invention of dal makhani. See also

 List of legume dishes
 Punjabi cuisine

References

Indian curries
Pakistani curries
Lentil dishes
North Indian cuisine
Punjabi cuisine
Vegetarian dishes of India