Inspired by the very first hamburger White Castle made when it opened its doors in 1921, the 1921 Slider features a thick, 100 percent beef patty, seared and seasoned, then topped with cheddar cheese, grilled caramelized onions, a slice of Roma tomato, lettuce and pickles on the brand’s signature bun.
In addition to the new Slider, White Castle is also introducing a…
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