The document discusses different types of specialty cakes including Sachertorte, Alhambra, and Opera Torte. It provides background on the origins of Sachertorte, tracing it back to 1832 when it was created by a young apprentice chef for Prince Metternich. It also details the closely guarded secret recipe used by Hotel Sacher in Vienna to produce the "Original Sacher Torte." European cakes are described as thin layers of sponge cake filled and iced, often with fruit fillings, and decorated on top. Opera Torte is a classic chocolate dessert with buttercream filling that stands out for its square or rectangular shape with visible cake layers.