Manhattan’s recently reopened Knickerbocker hotel is home to three new dining destinations helmed by Charlie Palmer, the famed U.S. chef and restaurateur. The iconic hotel’s fourth-floor signature restaurant, Charlie Palmer at the Knick, offers a seasonal breakfast, lunch, and dinner menu of Palmer’s progressive U.S. fare, featuring such items as Scotch quail eggs  with popcorn shoots, Dijon mustard, and pancetta aioli, and the Knick Burger: a dry-aged, custom-blended beef patty topped with short ribs and…