I am in love with Sriracha. It is the asian garlic-chili sauce that comes in a plastic squeeze bottle with a rooster on the front. And it turns out, as well-publicized on the show Top Chef, it really does go well with everything (except ice cream).
It adds a spicy, vinegary kick to just about anything. I love the way it brightened up the mac & cheese. It was indispensable in Mr Wonderful's Comfort Stew. It's fabulous to add to those bland, child-approved casseroles and pasta dishes. I am telling you, I would marry this stuff if I could, I love it that much.