Craving a cup of burdock tea and some kimchi at 2:00 A.M? Kunjip is open and ready to serve you. This place doles out traditional Korean food 24 hours a day seven days a week and the line is out the door. It's in the heart of bona fide K-town steps from Herald Square, so rest assured that it's the real deal. Service is speedy and the place is bustling so it helps to know what to order. You can't go wrong with the restorative dogani-tong, a soup of simmered ox knees, which could be your stand-in for chicken noodle any day. Move on to the goong joong dduk boki, a thin fried rice cake of scallions and beef; or the kam ja-tang, an amazingly tender fall-off-the-bones meat soup. Jok bal, sliced pig's feet topped with a fishy sauce is refreshingly different.