Chocolate Marshmallow Slices



1/2 cup butter
2 cups chocolate chips
6 cups miniature marshmallows
1 cup finely chopped nuts
additional chopped nuts

Over a double boiler, on low heat, melt butter and chocolate chips, stirring until blended. Cool for 5 minutes. Stir in nuts and marshmallows. On wax paper, shape mixture into two 7 inch rolls. Wrap in foil and refrigerate about 20 minutes. To coat rolls, roll in additional chopped nuts. Wrap and refrigerate overnight. Cut into slices.