The special-edition sandwich features elements from Burger King™s Whopper, Denny\'s Bacon Slamburger, Wayback\'s Wayback Classic, Krystal\'s cheese Krystal and Giraffas\' Brutus.\r\n
Burger King says it wants to serve the concoction for a single day somewhere in Atlanta, a midway point between the headquarters of the two chains.\r\n
Other fast food secret menus include fried chicken giant KFC, its Yum! Brands sister restaurants Taco Bell and even Subway, as all of these have been recently revealed to be in on this new trend.
The world\'s third-largest fast-food restaurant group\'s shares rise 7.5 percent to a five-month high on Monday after both chains posted a rise in second-quarter comparable restaurant sales.