Was it the pan-seared foie gras that won our hearts? The pâtè du chef infused with Madeira, cognac and essence of white truffle? Or those divine lamb chops with the pistachio-sage crust? Sure, Sophie's has ambiance aplenty, set as it is in a cozy little cottage, with hardwood floors, roughhewn wooden beams holding up the ceiling, and tasteful abstract prints hung on the cream-colored walls. And, of course, the service is nonpareil. But it's owner Serge Boukatch's classic French bistro cuisine that makes us swoon: duck breast sauted with Kirschwasser, salmon roasted in Cointreau and topped with grapefruit, escargot prepared traditionally in a bath of garlic butter, and so on. Jazz piano provides the soundtrack to our love affair with Boukatch's menu. And afterward, despite the thousands of calories inhaled, we'll sing, like Edith Piaf did in her day, Non, je ne regrette rien . . . Readers' Choice: Vincent on Camelback