Coq au vin is a classic French braise of chicken braised in red wine with pearl onions, mushrooms, and lardons, creating a rich, deeply savory sauce with subtle wine acidity and umami depth. The long, gentle cooking transforms tough cuts into tender meat while the wine reduces to a glossy coating. This is rustic French bistro cooking at its finest—humble ingredients elevated through technique and time, worth making for the complex, restaurant-quality result that improves with a day's rest.