In a large bowl, mix sugar with margarine, adding eggs one at a time until creamy.  Add vanilla sugar, nuts, starch, mixing well. Stir in chocolate chips until thoroughly mixed. Refrigerate dough for several hours.  Then pat it down on a 17 X 12 cookie sheet. Bake at 350 degrees for 15-20 minutes. Cool then cut into bars, store in a Tupperware airtight container for optimum freshness.