Okay, I'm not sure about this one....but in Korea they are testing out the Peanut Butter Stacker at Burger King. It's the brand's signature beef patties with mayo, pickles, American cheese and a new creamy peanut butter sauce. BUT, this is even crazier they are serving new PEANUT BUTTER FRIES. You can get the classic delicious BK fries smothered in a peanut butter sauce made with creamy peanut butter mixed with a dark cheese. What do you think?