- 1/2 cup corn syrup
- 1/2 cup peanut butter
- 3 cups crispy rice cereal (such as Rice Krispies®)
- 1 pint vanilla ice cream
- Mix corn syrup and peanut butter in a large bowl until smooth; stir in rice cereal. Press cereal mixture into the bottom of a 9×13-inch baking dish. Cover and freeze until firm.
- Cut cereal mixture in half, crosswise. Spread ice cream over half the cereal and press the second half over the ice cream to create a large sandwich. Cover and freeze again until firm.
- Cut sandwich into bars and serve or wrap individually with aluminum foil.