United Airlines tried five different sausage recipes and 36 pretzel buns before settling on the combination that made its way to in-flight menus: a smoked beef and pork link slathered with barbeque sauce and roasted onions.
It took more than 200 hours over the course of a year to develop the sandwich, which it created with the chef at Chicago’s Lillie’s Q restaurant.
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Gallery: Food in the air
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