Line a 9 x 13 inch pan with wax paper. Bring corn syrup to boil. Add peanut butter, stir and remove from heat. Stir in vanilla and nonfat dry milk. Add raisins and granola (reserve 1 cup). Add chocolate chips. Stir to mix. Press mixture into pan. Sprinkle with reserved 1 cup granola. Press. Refrigerate 1/2 hour and then cut into bars.