White Castle hamburgers are classy… we know this to be true. But if you’d like to make them off-the-charts sophisticated, you might try something like the $400 White Castle Slider.

Created by Nick over at Dude Foods — the very expensive slider is made possible by adding 15 Year Cheddar, white truffles, duck foie gras and port pâté, prosciutto, Russian caviar, and a quail egg to the already awesome slider.

The taste-test result, as Nick describes it… terrible. But he seems to be more than pleased with the aesthetic of the slider, describing it as his “Mona Lisa.” Sadly, this means that there will be no Crave Cases of these. Just in case you had $12,000 to spare.

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