- 2 (36 ounce) packages mini ice cream sandwiches
- 2 (8 ounce) containers frozen whipped topping (such as Cool Whip®)
- 1 (10 ounce) package mini candy-coated milk chocolate (such as M&M;'s®)
- 1 (8 ounce) package toffee baking bits (such as Heath®)
- 1/4 cup chocolate syrup (such as Hershey's®), or to taste
- Line a 9×13-inch baking dish with mini ice cream sandwiches. Spread 1 container of whipped topping over ice cream sandwiches. Sprinkle half of the milk chocolate pieces and toffee bits over whipped topping. Drizzle chocolate syrup on top. Repeat layers once more.
- Serve or cover and freeze until firm, at least 1 hour or up to 2 weeks.