Triple Chocolate Cake

This combination of chocolate cake, chocolate filling, and chocolate glaze is a classic. And the best thing about it is that you can assemble it over a period of several days, or even bake and freeze the cake layers several weeks in advance. The cake is filled and glazed with two different forms of ganache, a chocolate cream made principally from chocolate and heavy cream. The ganache used for filling the cake and spreading over the outside contains more chocolate than the glaze. The former