Cut the rolls into pieces with a thickness of about 1 cm. Cover the bottom and sides of bowl with foil. Arrange the sliced ​​rolls tightly to cover the bottom and sides of bowl. Beat cream with powdered sugar. In a separate bowl whisk the butter with dulce de leche. Mix the two in one cream, add the gelatin (prepared as directed on the package) and poured it into the bowl with the rolls. Top cover with pieces of the roll. We leave in the fridge to harden for 3-4 hours. Put cold milk in a deep pot. Pour the packet of cream powder and broken down to thicken. Apart Stir the butter with powdered sugar. Mix the two in one cream, optional coloring and leave in the fridge to set. Calling bowl cake in an appropriate dish and decorate with cream.