Line a 9x5 loaf pan with plastic wrap, leaving a 2 overhang. Cut cake rolls into 6 slices each. Line pan bottom and sides with slices. Spoon in ice cream, packing tightly, then cover and freeze 6 hrs or until firm
Before serving, in a medium bowl, whip heavy cream and confectioners sugar until stiff peaks form. Using the plastic wrap, lift the cake out of the pan and invert onto a serving platter; remove plastic wrap
Garnish top of cake with whipped cream, raspberries, and mint, if desired. Serve immediately