Attached to a brewery in Salt Lake City, Proper Burger Co. lets guests choose both their patty and what it's loaded with. The Proper Style comes with caramelized onions, American cheese, pickles, lettuce, tomato, and Proper sauce or try customer favorites, the Flyin' Hawaiian and Rising Sun. The former features pineapple, ham, Swiss cheese, jalapeños, and aioli, while the latter comes with kimchi, miso aioli, fried egg, sriracha, and cucumber pickles. Equally delicious are the Rarebit Fries, topped with beer-cheese rarebit sauce, bacon, red onion, and tomato.