Eggs, 200 ml milk and flour are broken. Heat the remaining milk with sugar and vanilla. A thin stream pour into the egg mixture while temperatures are the same. All returned fire and cook on low heat until a very thick cream. Retired from the heat and put the butter. The cream was divided into two equal parts. One to put cocoa and a good mix. Shaped cake with a diameter of 26 cm is arranged a layer of biscuits covered with brown cream on top again put cookies and cream is white, so alternating layers until all creams do. The form was coated with a fresh foil and the cake was left in the refrigerator for at least 4 hours. Then served sprinkled with cocoa.