Creamy Chocolate Fudge

3 cups sugar

2 cups chocolate chips

1 1/3 cups evaporated milk

½ cup butter

1 teaspoon vanilla

1 cup marshmallow cream

1 cup chopped nuts

Combine sugar and milk; bring to a boil and boil 10 minutes over low heat, stirring frequently. Meanwhile, combine remaining ingredients in a bowl. Stir into the boiling mixture. Stir until chocolate chips are melted and mixture is smooth. Pour into 2 buttered 8-inch square pans. Cool and cut.