National Slider Day is Thursday, May 15, and White Castle is celebrating by offering free Original Sliders to its customers. Customers can use a digital coupon on the White Castle website and social media channels, or enter the code SLIDERDAY on the White Castle app to get a free slider. No purchase is necessary.
Jamie Richardson, vice president at White Castle said, “The introduction of the Slider in 1921 helped turn White Castle into a household name and launched the fast-food industry as we know it today. We think a burger that has had so much influence in the food industry is worthy of its own special day, and what better way to celebrate than to thank our customers with a complimentary Slider.”
In addition to the free Slider, White Castle will also offer six Original Sliders for $4 on May 15.
Source: QSR Web