"Perhaps it’s illogical to expect one of the city’s greatest franks at a hamburger chain, but the all-beef, quarter-pound, kosher-style frank ($7.25) at Five Guys is astonishingly good. It is split in half lengthwise, then fried in the hamburger grease that pools on the griddle, giving it a Frankenstein flavor — what shall we call it, a hamfurter or frankurger? The bun is grilled, too, then the weenie is deposited on it and heaped with any choice of the chain’s ingredients. In my case, I always get mustard, raw onions, dill pickles, and fresh jalapenos — seeds and all. Since the whole thing comes to only 500 calories or so, it makes for a nice diet meal. 2 Metrotech Center, between Willoughby and Johnson streets, Downtown Brooklyn — Robert Sietsema, senior critic" - Eater Staff