Miracle Whip is "dressing, " not mayo. It says so right on the label. This was a huge debate back in my college days with one of my roommates. It was the one thing we could not compromise on at the store, so we had both mayo (for me and the other roommates) and Miracle Whip for him. He was wrong, and eventually admitted to it a few years ago when we got together to see our college team play a football game.