White Castle to Treat Customers to a Free Cheese Slider in Recognition of National Slider Day May 15

Customers Can Pick Up a Complimentary Cheese Slider with a Coupon on White Castle’s Social Media Channels COLUMBUS, Ohio, May 13, 2022 /PRNewswire/ — White Castle invites customers far and wide to enjoy a complimentary Cheese Slider on National Slider Day, May 15. All they have to do is visit their favorite White Castle and …

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