Whisk fudge topping and 1 cup COOL WHIP in medium bowl until blended.
Add dry pudding mix; stir 2 min. Stir in 1 cup cookies.
Arrange 4 ice cream sandwiches, side-by-side, on 24-inch-long piece of Reynolds Wrap Aluminum Foil; cover with half the COOL WHIP mixture. Repeat layers. Top with remaining sandwiches. Frost with remaining COOL WHIP; press remaining cookies into top and sides of dessert. Wrap loosely with foil.