White Castle slides into partnership with USA Luge Kids get ready to roll in one of the White Castle/USA Luge clinics the two organizations have launched as part of their promotional partnership. (Photo provided) Feb. 5, 2021 White Castle — long known as the home of the Slider — is partnering again with USA Luge through 2023, as an extension of a cross-promotional program that extols the virtues of both Slider burgers and Slider athletes, who compete for the fastest time on sometimes treacherous downhill ice tracks. The partnership began in 2017, when Columbus, Ohio-based White Castle became an official sponsor of the sports organization and title sponsor of its off-season recruitment program, the White Castle USA Luge Slider Search, a news release said.