Run knife around edge of dessert to loosen; remove side of pan. Place dessert on serving plate. Beat remaining 1 cup whipping cream in chilled small bowl on high speed until stiff. Spread half of the whipped cream on side of dessert. Carefully cut cookies crosswise in half. Arrange cookies, vertically and with cut sides down, around side of dessert; press lightly. Garnish with remaining whipped cream and berries.