What's something you add to (most of) your dishes that gives it a signature taste or a special kick?
I like to throw a pinch of chicken bouillon in a lot of different dishes, sometimes in lieu of salt or in addition to. The bouillon I use also has onion, garlic, and paprika so it gives everything a subtle but welcome kick.
An alternative that brings an umami punch to a full soup pot full of sauce or stew is a single anchovy fillet that you have chopped into paste. There won't be any fishy flavor at all, and people will BEG you to tell them your secret, and then refuse to believe you when you tell them. It's a truly enjoyable bit of chaos.
Oh, and I am talking like 1 fillet for 2-3 gallons of sauce/ stew.