Kick the tires and light the fires to 350 degrees.
Cream the butter and sugar together well, then add in your eggs.
Once the eggs are completely mixed in, add in your vanilla.
Shred an entire lemon onto the mix, which means taking a lemon, and grating all the yellow part off. This is really what adds the lemon flavor, don't skimp on the lemon.
Whisk your dry ingredients together.
Add the dry in slowly to the wet mixture, little by little. This is where you are going to work those arm muscles; I wouldn't use a mixer at all with this recipe, they would be far too fluffy for rolling and cutting shapes out of.
You can either cover the dough or put it into a plastic bag, and refrigerate it for at least an hour.
A handy tip for cutting out sugar cookies is to roll the dough onto your parchment paper about 1/4 to 1/2 inch thick, cut out your shapes, then remove the excess dough, leaving the shapes untouched and unmoved on the parchment, then just lift and place onto a baking sheet. Easy! For the Deathly Hallows Cookies, roll out the cookies to your desired thickness (these make great thick cookies!) and cut out a circle with a glass.
Bake in a 350 degree oven until the edges just barely start to get brown, about 6-8 minutes.