I have been in Delhi for about 4 years now and the most wholesome breakfast that I think Delhi has to offer is Nagori-Halwa. A lot of my friends don't even know what is it. So just to elaborate a touch more, Nagori is something like a small kachori or a small poori and it is had with allo ki sabzi and halwa. All of us what Paranthe wali Gali is but very few of us know that the same "Gali" leads to "Maliwara" which is the house of Indian Breakfast in Chandni Chowk.
Next time you guys are there in Chandni Chowk you have to try these. They are like one of the tastiest (mind it they are fattening :P )little pooris you will ever have.
A must go.
Place: Maliwara-Enter Paranthe wali Gali and keep walking straight and at the T point make a right and you will be able to spot the "Halwai" right there.
Enjoy :D