Ramen at Katana-ya Restaurant

This Union Square outpost comes with all the masochism people expect from a cult-followed hole-in-the-wall. Brave long lines and surly service to be rewarded with staggering ramen permutations: specify density (rich or light), flavor (soy, miso or salt), and spiciness before diving into all the possible toppings. Steer clear of the seductive deep fried chicken ramen and stick with the standard BBQ pork. Hot tip: the tourists have caught on to this one, so it's best to go before the lunch rush, or for late night noodles until 1 a.m.