Dissolve over low heat until thoroughly melted: 1 large package of chocolate chips and 1 stick of butter. Cool.
In large bowl, mix one large package of pastel tinted miniature marshmallows and one cup walnut meats.
Pour cooled chocolate mixture into marshmallows and nuts and mix well. Butter palms of hands and form a roll. Roll in finely chopped nuts or toasted coconut. Wrap the roll in foil and refrigerate. When firm, slice into cookies.