Weigh or measure your sugar and set aside. In another bowl, weigh or measure the flour, baking powder, baking soda, salt, cinnamon, and nutmeg, running a whisk through to blend. Using a stand or hand-held mixer, add the butter, sugar, and blend on medium-high speed for 3 minutes. Scrape down the sides and add the egg; once the egg is incorporated, turn down the mixer and slowly add the flour mixture. Once the flour has been incorporated, take the bowl off the stand and wrap it loosely with plastic wrap. Refrigerate for 30 minutes.