One of my favorite appetizers at one of DC's best pizzerias is the rapini with vin cotto. I've been to known to actually lick my plate to make sure none of the gooey, syrupy, incredible vin cotto goes to waste. Vinegar is one of my favorite condiments, and the bitter-sweet combo of it and the rapini in this dish is off the charts awesome. This is my version of the restaurant's dish.