Chocolate Marshmallow Fudge

1 lg Can Evaporated milk

1/4 lb Butter

4 c Sugar

2 pk Chocolate pieces ( 6 Ozs ea)

1/2 Jar marshmellow cream

Combine first three ingredients in saucepan and cook to 234 deg.F or until it forms a soft ball in cold water. Stir often. Remove from heat and fold in remaining ingredients. If desired add chopped nuts. Pour into greased 8 X 13 inch pan. Refrigerate until firm. Cut into squares.