Opera cake

Opera cake (French: Gâteau opéra) is a French cake. It is made with layers of almond sponge cake (known as Joconde in French) soaked in coffee syrup (or Grand Marnier), layered with ganache and coffee-flavoured French buttercream, and covered in a chocolate glaze. Its name originates from its layers resembling the levels of an opera house.

According to Larousse Gastronomique, "Opéra gâteau is an elaborate almond sponge cake with a coffee and chocolate filling and icing." Edible gold leaf is sometimes added to the presentation.