In 2015, White Castle introduced National Slider Day, honoring its original steamed slider with onions. So prolific is the ...

White Castle is celebrating National Slider Day by honoring customers with free sandwiches and money-saving deals. According ...

You can get a free Original Slider at White Castle on May 15 to celebrate National Slider Day. No purchase is required. The ...

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Smalls Sliders has announced the return of its National Slider Day promotion to honor each location’s Smalls Rewards loyalty members. Slidin’ thru Smalls Sliders Cans on May 15, the brand’s loyalty ...

As the restaurant industry’s “value wars” heat up, Krystal is leaning into its legacy and consumer demand for affordable indulgence. This May, Krystal is activating two high-impact national food ...

White Castle is offering a complimentary original slider on May 15 to commemorate National Slider Day. The restaurant chain, known for its mini hamburgers, started the giveaway celebration in 2015 ...

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 ...

Want a free burger? Today's the day to head to White Castle. You can get a free Original Slider at White Castle on May 15 to celebrate National Slider Day. No purchase is required. The burger ...