Pumpkin Bliss Treats

Spray a 9-inch square baking dish and a large spoon with cooking spray.

Melt butter in a large saucepan over medium heat. Add marshmallows; cook, stirring constantly, until melted, about 3 minutes. Remove from heat. Stir in cereal gently. Pour mixture into the prepared pan. Arrange candy corn on top. Press mixture evenly into the pan using the sprayed spoon. Cool completely, about 30 minutes.

Cut mixture into bars.