I also eat regular pancakes and love the light fluffiness of these even more. (eugeniekitchen.com)
This step is particularly important since shortbread cookies have no leavening agent (i.e. no baking soda or baking powder), so the tiny air bubbles you're beating in now are the only source of fluffiness in your cookies. (vintagevictuals.com)
This step will add extra fluffiness to the ornament and finish the back. (3littlegreenwoods.com)