Triple Chocolate Rice Krispie treat

Triple Chocolate Rice Krispie treat 1/2 stick butter 10 oz bag marshmallows 6 cups Cocoa Krispies 1 cup milk chocolate chips 1 cup chopped Oreos Spray a 9×13 pan with cooking spray; set aside. Heat the butter over low heat in a large nonstick saucepan until melted. Add the marshmallows and stir until melted and smooth. Remove pan from the heat and add cereal, chips and cookies. Press mixture evenly into prepared pan. Cool completely before cutting into squares.