To prepare the form ( for large cake should be not less than 30cm and small cakes less, and preferably separable) : to lay it with foil and well greased with butter. Preheat the oven to 180% and bake the cake in an hour.., the time may need a little more.. ( up to one and a half hours.., watch at the ready)at the beginning the oven should not be opened, and after making the cake, leave it in oven for 45-50 minutes..