Who Mixes Mayo and Popcorn Together And Calls It Salad? Gross! This insanity started earlier today and I really paid it no mind. My friend Stephanie posted something on Facebook, I saw it, and tried to make out what it was but quickly lost interest as I couldn't figure out what I was looking at. Stephanie KD via Facebook I mean it says popcorn salad but I couldn't make out what was in the bowl. Turns out that was the mayo, sour cream, and mustard base/dressing that would be used to make this monstrosity. Behold it's creation with your own eyes.