Special Snickers Bar

12 oz. soft diet ice cream
1 c. diet Cool Whip
1/4 c. chunky peanut butter
1 pkg. sugar-free butterscotch pudding (dry)
3 oz. Grape-Nuts cereal

Mix first 4 ingredients in mixer, then stir in cereal.
Pour into 8 inch square pan.
Cover and freeze. Makes 4 servings.