Line 4 ice cream sandwiches next to one another in a row
Fold together the whipped topping and ice cream and layer on top of the ice cream sandwiches
Sprinkle half of the cookie crumbs on top
Drizzle the hot fudge sauce on top of crumbs
Top with the remaining four ice cream sandwiches
Top the sandwiches with more whipped topping and go over the sides as well
Place in freezer for 2-3 hours to set
Garnish with remaining cookie crumbs, if you'd like
Notes
Before adding the last layer of whipped topping, I scrape anything that has melted and dripped onto the pan, with a spoon. I then place that on top of the ice cream sandwiches and then add the whipped topping.