Marshmallow puffs

Marshmallow Puffs
36 large marshmallows
1 1/2 cups (9 ounces) semi-sweet chocolate chips
1/2 cup chunky peanut butter
2 tablespoons butter (no substitutes)
Line a 9 inch square pan with foil and butter the foil. Arrange marshmallows in pan. In a double boiler or microwave-safe bowl, melt chocolate chips, peanut butter and butter. Pour and spread over the marshmallows. Chill completely. Cut between marshmallows.
Makes 3 dozen.