Once Louise Pommery's mansion, this small château (early 20C) standing in superb grounds exudes classic elegance. Using premium ingredients, chef Christophe Moret concocts refined, approachable dishes that are as generous as they are delicious – spider crab infused with sea fennel, or glazed mallard duck with juniper and elder. Rosalie Boucher's desserts are cleverly devised for maximum lightness. These gems feature in the various set menus but also – an increasingly rare pleasure – on the à la carte menu. The wine list includes almost 900 champagnes. Superb guestrooms and suites.