Perhaps the most unexpectedly clever way to create a new extreme junk food item is to turn a non-junky foodstuff into something that just oozes calories and decadence. Fried chicken giant KFC knew that—and played it up to major effect—when they introduced the KFC Double Down back in 2010. The sandwich foregoes the most traditional aspect of any sandwich (the bread!) and substitutes two fried chicken filets. In between the two pieces of chicken? Bacon, two different kinds of cheese, and the Colonel’s “secret sauce.” There’s no room for a bun here, folks.