1 (12 oz.) pkg. semi-sweet chocolate chips
1 (12 oz.) pkg. butterscotch chips
1/2 c. butter
1 (10 1/2 oz.) pkg. miniature marshmallows
1 c. nuts, chopped

In 4-quart bowl, combine chocolate chips, butterscotch chips and butter. Cook on medium high 5-7 minutes or until melted. Stir in nuts; cool. Add marshmallows and spread in buttered 9x13 pan. Refrigerate until set, about 2 hours. Cut in squares.