Eggs and sugar is broken down to the graying, then add flour and vanilla with a wooden spoon. Pour the mixture into a greased with sunflower oil and covered with a square paper tray. Bake at 180 C. After baking, place on a damp cloth and formed into a roll, then carefully developed and applied blueberries. Formed again and covered with chocolate and coconut. Products for icing cook on low heat to thicken.