Martha's Super Fudge

4-1/2 Cups  sugar
2/3 Cup   butter
1 can (large)   condensed milk

Put sugar, canned milk and butter in a sauce pan. Bring to a boil and
cook for exactly 8 minutes, stirring constantly to keep from
sticking. Remove from heat and add:

3 Cups  chocolate chips, stirring until melted;
         then add:
1 Cup  nuts, chopped  (walnuts or pecans)
2 tsp.  vanilla
1 jar (8 oz.)   marshmallow cream

Stir everything together and put into a large cake pan to cool.