IN HER fascinating book on Corfu, Ninetta Laskari claims that this dish is part of the Venetian heritage of the island. She writes that it got its name from the stua—the small openings on the cooler side of the old wood-burning kitchen stoves that were used for simmering. “There, we used to cook food in covered pots for hours or overnight. On the stua, one cooks the stoufado, various meats accompanied with all sorts of vegetables or beans. In the rest o