Prepare as directed, except in Step 3 reduce the powdered sugar to 1/2 cup and stir in 3 Tbsp. unsweetened cocoa powder. Shake cooled cookies in the cocoa mixture.Per cookie: same as above, except 97 cal., 9 g carb.
Layer cookies between sheets of waxed paper in an airtight container; cover. Store at room temperature for up to 3 days or freeze uncoated cookies for up to 3 months. To serve, thaw cookies, if frozen. Shake cookies in powdered sugar as directed.