Rice Krispie Roll Ups Recipe

Melt butter and marshmallows. Stir in Rice Krispies. Line cookie sheet with wax paper. Spray wax paper with cooking spray. Press cereal mixture evenly onto wax paper with buttered spoon. Melt peanut butter and chocolate chips. Spread onto cereal mixture. Roll up like jelly roll, starting at narrow end. Chill 1/2 hour. Cut into slices and enjoy!