Peanut Butter Marshmallow Treats

Grease 13x9" pan. Combine butter, peanut butter and marshmallows in large microwave safe bowl. Microwave uncovered on high for 1-1/2 to 3 minutes, stirring after 1 minute, until mixture is melted and smooth. Stir in cereal.

Press mixture into prepared pan, using buttered hands (be careful, the mixture is pretty warm). Immediately make 24 indentations in rows in the cereal mixture using handle of wooden spoon. Press peanut butter cups into indentations. Let cool. Cut into squares with a candy in the center of each square.