Line 13x9-inch pan with foil, with ends of foil extending over sides; spray with cooking spray. Microwave 6 oz. chocolate and butter in large microwaveable bowl on HIGH 2 min. or until butter is melted. Stir until chocolate is completely melted and mixture is well blended. Add sugar and 1/2 cup honey; mix well. Blend in eggs. Add flour; mix well. Pour into prepared pan.