Chocolate Fantasy Fudge

3 cups sugar
¾ cup margarine
2/3 cup evaporated milk
1- 12 oz. pkg semi sweet chocolate chips
1 – 7 oz jar marshmallow crème
1 cup nuts
1 tsp vanilla
Combine sugar, margarine and milk in heavy 2 ½ qt pan and bring to a rolling boil stirring constantly to prevent scolding. Remove from heat and stir in chocolate pieces until melted. Add marshmallow crème, nuts, and vanilla. Beat until well blended and pour into greased 9x13 inch pan. Cool at room temperature and cut into squares. Yields 3 lbs.