Mering roll (baking sheet 30 * 40 cm)200 gr. egg white300 gr. powdered sugar20 gr. corn starchlemon acid30 ... 50 gr. the nuts150 gr. cream 33 -35%150 gr. cream cheese or mascarpone20 gr. powdered sugar (for cream)1 bananaBake the cake should be at 150 ° C - 30 ... 40 minutes.