Cedric Grolet Opéra is a pastry shop on Avenue de l'Opéra in Paris that sells croissants, pain au chocolat, and mousse desserts. The main items are the croissant and the pain au chocolat, while the Gousse de Vanille and Fleur de Vanille have a pronounced vanilla bean flavor. Reserved tea times and petits gâteaux allow entry or pickup after a short wait, but walk-in purchases require standing in line. At 11 a.m. and noon there are no croissants and only two kinds remain, leaving a narrow selection.