The butter is put to melt shaped cake with a hole in the oven at 200 C. This step can be performed simultaneously two things - the melting of the butter and heat the oven. Cake bake in middle of oven. During this time, a mixer is broken first eggs and sugar until fluffy. Add vanilla, flour and baking powder. Once the butter is melted, the container is removed from the oven. Very carefully pour half the cake mixture in the form on the butter. In the other half of the mixture was added to the chocolate and mix well with a spoon or a mixer. Cocoa thus obtained mixture was added a thin stream of the white cake mixes. Without further stirring cake put to bake. It takes 40 to 60 minutes. Check with a wooden stick as an indication of readiness is dry stick. Once the cake is ready, is allowed to cool to room temperature during this time was prepared chocolate icing. Chocolate is broken into pieces and add the butter, also cut into pieces, melted in the water bath, stirring constantly. Must obtain a homogeneous chocolate-oil mixture. Cake turns on a tray or a container in which it will be stored. For easy removal of the cake in the form contributes melted butter. Cake carefully watered with chocolate. Before fell forward with a lid must be completely cool. Optional sprinkle with powdered sugar and the hole is filled with dried fruits for decoration. * Due to the decoration of the cake with powdered sugar and dried fruit, I called Christmas cake. But can be served with chocolate or sprinkled with sugar sticks, almond shavings.