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Ice Cream Sandwich Cake

Ice cream sandwich cake with crisp chocolate ice cream sandwiches layered with whipped topping and a glossy hot fudge swirl. This no-bake ice cream cake sets firm in the freezer for clean slices and a crowd-pleasing, party-ready look.
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Prep Time 20 minutes
Freezing 6 hours
Total Time 6 hours 20 minutes
Servings: 12 servings
Course: Dessert
Cuisine: American
Calories: 520
Ingredients Method Notes

Ingredients
  

Ice cream sandwiches
  • 24 rectangular ice cream sandwiches Use classic chocolate cookies for the layered look.
Whipped topping
  • 16 oz whipped topping (Cool Whip) Two 8-oz tubs total; keep chilled until layering.
Hot fudge and caramel
  • 1 cup hot fudge sauce Swap for warm hot fudge for easier drizzle consistency.
  • 0.5 cup caramel sauce Use a thick caramel sauce for clean ribbons on top.
Decoration
  • 0.25 cup rainbow sprinkles Any sprinkles work; rainbow matches the hero look.
  • 0.25 cup Oreo crumbles Optional but adds crunch and chocolate depth.

Method
 

Layer the cake
  1. Arrange a single layer of rectangular ice cream sandwiches in a 9x13 pan, fitting them snugly with minimal gaps so the layers hold together.
  2. Spread half the whipped topping (Cool Whip) over the sandwiches in an even layer, leaving no ice cream peeking through.
  3. Drizzle half the hot fudge sauce and caramel sauce over the whipped topping, creating ribbons you can still see before freezing.
  4. Arrange a second layer of rectangular ice cream sandwiches on top, pressing very lightly so they adhere to the filling.
  5. Spread the remaining whipped topping to cover completely, smoothing the surface to the edges for a uniform slice.
  6. Drizzle the remaining hot fudge sauce and caramel sauce over the top, then decorate with rainbow sprinkles and Oreo crumbles.
Freeze and slice
  1. Freeze the ice cream sandwich cake at least 6 hours or overnight before slicing, so the layers set solid and cut cleanly.

Notes

For the cleanest slices, keep the cake frozen until serving and run a warm knife under hot water between cuts. Store covered in the freezer for up to 2 weeks; the texture is best within the first week. Freezing is yes—don’t refrigerate once assembled. If you want a lighter option, use reduced-fat whipped topping, which still layers well but may be slightly softer after freezing.