For all of the menu items that Burger King has come up with over the years, the Whopper has survived as a staple for good reason: The signature grilled hamburger tastes about as close as fast-food customers are gonna get to a flame-broiled, backyard burger. And even when ingredients are added to make it a fill-in-the-blank "new" Whopper, fans always know that the "new" Whopper is never going to stray far from the old one that they expect.
In other words, adding guacamole, bacon and a mess of raw white onion slices to the Whopper won't make it weird.
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