Dedicating whites and yolks. Beat the egg whites on hard snow, and the yolks in another bowl whisk sugar. Melting chocolate with the butter in a water bath, when melted add them to the egg yolks. To the resulting mixture add the beaten whites while stirring slowly. Ready mix Pour into baking tin. The baking have a diameter not greater than 30 cm, if the new silicone forms may have do not suck, because there is enough butter, if the old can curry favor with butter and lightly flour dusting. Bake in preheated oven at 180C for 35-40 minutes without opening the oven. The finished cake is discharged after being well cooled and consumed after 12 hours. * The cake contains no flour, these are all products, rise enough of egg whites and tighten well.