White Castle introduced National Slider Day in May 2015 to honor the slider.
“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,” said Jamie Richardson, vice president at White Castle. “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.”
No purchase is necessary.
Customers can use a digital coupon available on White Castle’s website and social media channels or enter the code SLIDERDAY on the White Castle app to redeem the offer.
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