White Castle, the first fast-food hamburger chain in the U.S., will be releasing a brand-new menu item on April 1. Called Slider Lites, the new 100% all-beef burger is the same size and square shape of White Castle's Original Slider. Instead of having five small holes in the patty, however, the Slider Lites come with just one large hole, which means they have a fraction of the calories of the Original Slider.
The single hole, smack dab in the middle of the patty, is White Castle's latest innovation in a long list of innovations that span the family-owned company's 102-year-old history. Among other things, White Castle designed the first industrial-grade spatula, introduced carryout with its "Buy 'em by the Sack" carryout sack and made burgers in a square shape to maximize cooking space on the griddle.