POUR fudge topping into medium bowl. Add 1 cup of the whipped topping; stir with wire whisk until well blended. Add dry pudding mix; stir 2 min. or until well blended. Gently stir in chopped cookies; set aside.
ARRANGE 4 of the ice cream sandwiches, side-by-side, on 24-inch-long piece of foil; top with half of the whipped topping mixture. Repeat layers. Top with remaining 4 ice cream sandwiches. Frost top and sides of dessert with remaining whipped topping. Bring up foil sides. Double fold top and ends to loosely seal packet.
FREEZE at least 4 hours before serving. Store leftover dessert in freezer.