McDonald's not so secret sauce

All these years I thought it was something simple like ketchup that made it that signature orangey-red.  Its not but you have to follow through the video to see what it really is!  Actually the video shows you how to make a Big Mac at home, which is alright too.  (Color me funny but I prefer the Carl's Jr Western Bacon Cheeseburger over the Big Mac 'cause its char-broiled not fried).