Allow a good two hours to refrigerate the dough before baking. This makes cutting the shapes much easier.
Step 1: Ingredients
1 cup (8oz) butter, room temperature
1 cup (200g) sugar
1 tsp. vanilla (or your favorite) extract
3 cups (375g) flour
1 1/2 teaspoon baking powder
1/2 teaspoon salt
Makes about 2 dozen cookies.
Cream together butter and sugar, scraping sides of bowl with a rubber spatula. Start on a medium speed, and gradually increase to highest speed possible until mixture is light in both color and texture.
Add egg and vanilla. Mix well.
Sift together dry ingredients and add a little at a time to butter mixture with the mixer on a low speed. Scrape the bowl often. Mix until flour is completely incorporated and the dough comes together.
Chill for 1 to 2 hours
Step 3: Roll, Cut, and Bake
I recommend dividing your dough into two portions before rolling, and keeping the other refrigerated. Then when you've cut out one batch, you can gather up and refrigerate the scraps from it while you roll out the next batch. This keeps your dough chilled and easy to work with.
Cut out whatever shapes you desire. I recommend mustaches!
Bake at 350F (180C) for 10-12 minutes, adjusting time to compensate for size of cookie.