Start by unwrapping your vanilla ice cream sandwiches and arranging them in a single layer at the bottom of a 9×13-inch dish, ensuring they are closely placed together for stability.

Take your thawed whipped topping and spread a generous layer over the ice cream sandwiches using a spatula.

Warm your hot fudge and caramel sauces slightly in the microwave for about 10-15 seconds, then drizzle both sauces over the whipped topping.

Continue to build your cake by adding another layer of ice cream sandwiches over the whipped topping and sauces. Repeat the process for several layers, finishing with a layer of whipped topping.

Sprinkle chopped pecans or your choice of topping over the last layer of whipped topping.

Cover the dish tightly with aluminum foil and place it in the freezer for at least 30 minutes.