1 (6 oz.) pkg. chocolate chips
1 (6 oz.) pkg. butterscotch chips
1 can chocolate frosting
1/2 c. chopped nuts
1 1/2 c. miniature marshmallows

Combine chocolate chips and butterscotch chips in glass bowl. Microwave on high for 1 to 2 minutes or until melted; mix well. Blend in frosting, fold in nuts and marshmallows. Pour into greased 9 x 9 inch pan, Chill for 1 hour before cutting.