Cuttlefish are related to squid but tend to be larger. The sea around the Ile de Ré has many, so they are often on the area’s bistro menus. Replace with squid if they are not available locally, and smile at your fishmonger and ask him to prepare them for you. If preparing them yourself, follow the method in the recipe for Baby squid with red pepper stuffing. Ratatouille and sauté potatoes make good accompaniments to this dish.