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.
Tomato sauce and everything hot tomato, especially if you use canned tomatoes, needs a bit of sugar. It makes it 100% better. It does not make it sweet, but all the flavors of the tomato just pop while otherwise it is only sour and bland.