Double chocolate cheesecake for philly: 24 oreo cookies, crushed making 2 cups worth. 1/4 cup butter, melted 2 lb philly creme cheese softened 1 cup sugar 2 tB flour 1 tsp vanilla 8 oz bakers semi sweet chocolate 4 eggs Heat oven 325 degree F. 13x9 lined cake pan with foil going over sides. Mix cookie crumbs and butter. Press into bottom of prepared pan. Bake 10 minutes. Beat cream cheese, sugar, flour, and vanilla in mixer. Add chocolate that was melted in a double boiler and cooled slightly and mix well. Add eggs one at a time mixing on slow speed after each until just blended. Pour over crust. Bake 45 minutes until center is almost set. Cool completly, refrigerate after 4 hours.