Eggs are divided into white and yolk. Whip with a mixer of heavy snow. Three accept added 1/4 cup of sugar. Egg white snow arrives in the refrigerator. In a separate bowl, break up the yolks and other graying 3/4 cup of sugar. Add the oil and water and is stirred again with a mixer until uniform. Sift the flour and mix with baking powder, baking soda and grated orange peel (and / or vanilla sugar). With stirring the flour is added to the yolk mixture. Finally, gently stir with silicone spatula put snow and egg white, such as the introduction done by stirring the bottom up - not to be confused many, but only to take egg whites and they do not fall. From the resulting cake is separated 1 cup and stained with cocoa. In a greased and floured cake form pour half of white cake batter. Sprinkle evenly with the walnuts and raisins. Cover with the remaining white batter. Finally, the top again evenly pour the cocoa batter. cake bake in preheated oven until ready 180-190C - sample with a wooden skewer. Wadi and cool. Optional it can be preferred glaze. * The definition of uniformity of strew of raisins and the walnuts and pouring cocoa dough is important for the proper shape of the cake in baking. In unevenness - and they outweigh rising process is asymmetric. * 1 cup = 250 ml