Mix cake mix according to pkg. directions. Grease and flour a cookie sheet and pour cake mix onto cookie sheet. Bake at 350 degrees for only about 15 minutes or until toothpick comes out clean when inserted in the middle of the cake. Allow cake to cool, remove from cookie sheet and place on wax paper. Dust with powdered sugar. Mix pudding according to pkg. directions; you may use instant pudding to save on time if you wish. When pudding is set, pour the chocolate chips in and stir well. Spread pudding out evenly on cake. Roll up cake gently and sprinkle cake roll with confectioner's sugar