Aunt ruth's church window cookies

1. Melt butter and chocolate chips in a large sauce pan over low heat. Let cool.

2. Add nuts and marshmallows. Mix thoroughly.

3. Divid into two or three portions and place on saran wrap -- a separate sheet of saran wrap for each portion.

4. Shape into rolls, wrap in saran wrap and refrigerate until firm. Remove saran wrap and roll in powdered sugar.

5. Store until ready to use, then slice.