See how to make a simple braised leek gratin. Place your pancetta-wrapped leeks into a baking dish and top with chicken stock, white wine, and a sprinkling of salt. You’ll bake for a spell, and then top with heavy cream and freshly grated Parmesan before returning the casserole to the oven for the home stretch. In the video, you'll also see a great method for cleaning your leeks. Watch the video, then get the recipe for Chef John’s Pancetta-Wrapped Leek Gratin. Serve as a simple side dish or add the leeks to a bowl, spoon in some of that delicious broth, and enjoy with buttered bread for a tremendous lunch.