Method

1. Coat a baking dish and a large bowl with cooking spray. Add cereal to the prepared mixing bowl; set next to stove.

2. Heat caramel bits and butter in a large saucepan over low heat until melted and smooth, about 5 minutes; add marshmallows. Continue to cook mixture, stirring regularly, until marshmallows are melted and mixture is smooth, about 5 minutes. Immediately pour into center of the cereal; quickly stir until cereal completely coated.

3. Spread cereal mixture into the prepared baking dish. Coat the back of a spoon with cooking spray; press cereal mixture into an even layer with back of the spoon. Let cereal mixture cool completely before cutting into squares.