Ready base is cut into 2 parts, one is thicker (2: 1). The larger base of the net is cut so as to produce logs and of thinner is cut in the center circle diameter of the raised portion form a hole. Milky cream: Beat egg yolks with sugar, add the flour and milk. Boil to thicken. Finally, add the vanilla and butter. Chocolate cream: Mix cocoa and sugar. Add water and boil to melt the sugar. Form a hole is smeared with butter. Pour 2/3 of the milk cream. Each block of the fat base is dipped in chocolate cream and lining up on milk cream 2 against one another (such as V), ie one on the outside, one of the inner side of the mold. Between the two racks (in the middle of the form) put circle banana. So until the logs. Pour the other 1/3 of the milk cream. Top put the cut (with a hole in the center) base. The cake is placed in a chamber of the refrigerator or freezer to harden. Before you turn into the cake pan, shape immersed seconds in boiling water. On top sprinkle with chocolate sprinkles. In the hole put fir branches, which are sprinkled with powdered sugar to resemble snow.