What Babish recipe do you use to impress people?

In an effort to have some discussion that isn't based around Andrew's website...

I'm a teacher, and tomorrow is my school's end of year potluck - My go-to is always his Mac and Cheese recipe from his "Sauces" Basics episode. This one has caramelized onions mixed inside, so as to not alienate the non-meat eaters in my school - usually I'll throw in bacon or chorizo as well. It's an easy enough recipe that's a huge step up from what people expect when they are expecting macaroni and cheese, so it's always my go-to.