What's your secret ingredient that makes your version of a common dish better than anyone else's?
Mine probably isn't that secret these days, but almost every sauce I add nutritional yeast to. Curry, chilli, bolognese, it just makes them all better.
Unsweetened cocoa powder in my chili. I'm not sure how common/uncommon that is, but everyone I've ever told looks at me like I'm crazy, right before asking for a 4th bowl. At least Alton doesn't think I'm crazy.