I was in Philly for NBC Warfare School in 1968...The cheese steaks at a little hole in the wall place on Chestnut off Broad Street were the only real Philly Cheese Steaks I’ve eaten...I’ve had them since in many places, but nothing else compares...:o)
The secret is the rolls. I have no idea what (may be the water lol) but the rolls are not duplicated anywhere else.