In small microwavable bowl, microwave chocolate chips uncovered on High 1 to 2 minutes, stirring every 30 seconds, until chips are melted. Dip each cookie halfway into melted chocolate, letting excess drip off. Place on waxed paper and let stand until chocolate is set, at least 2 hours. To quickly set chocolate, refrigerate cookies 15 minutes. Store between sheets of Reynolds Parchment Paper in tightly covered container at room temperature.