It is very important to have all your ingredients in place ( literally, put in place the preparation and assembly of ingredients, utensils, pans, plates or serving pieces needed for a particular dish) ready before beginning to make the macarons. First, line 3 flat baking sheets with parchment paper and set aside. Second, using a medium-mesh sieve, sift the powdered sugar and almond flour into a large bowl and set aside. Third, in a clean stand mixer using the whisk attachment, whip the egg whites on medium speed until foamy, very soft peaks about 1 to 2 minutes. Add 1 tablespoon of the granulated sugar and continue to whip for another 30 to 45 seconds. Repeat this 3 more times. If adding food coloring do it now and whip until you achieve stiff and glossy peaks