Cathedral Window Fudge

Directions

1. 1
   Melt chocolate chips in large saucepan over low heat, stirring constantly until smooth. Remove from heat.
2. 2
   Stir in frosting. Fold in marshmallows. Let stand 15 minutes or until mixture is cool enough to handle.
3. 3
   Divide mixture in half. Pour mixture onto sheet of plastic wrap, scraping mixture from saucepan. Shape each half into 9x2 inch log.
4. 4
   Wrap tightly in waxed paper and refrigerate for 2 hours or until firm. With thin sharp knife, cut each log into 1/2 inch thick slices.