Chocolate cake is a popular dessert that comes in many varieties. The most common type is a layered cake with chocolate frosting. The term 'chocolate cake' can refer to a variety of cakes, including LAVA cake, Sacher torte, and lavacake. LAVA cake is a moist, rich cake with a molten center of warm chocolate. Sacher torte is a Viennese specialty cake made with layers of apricot jam and chocolate icing. Lavacake is a combination of LAVA cake and Sacher torte, with a layer of chocolate cake topped with a layer of molten chocolate.