Preheat oven to 350 degrees and prepare a baking sheet by lining it with a silicone baking mat or parchment paper. Set aside.
In a mixing bowl, beat together the butter and the sugar until well combined - about 2 minutes.
Add the egg and the pumpkin spice extract. Beat into the butter and sugar mixture until completely incorporated.
Sift together the flour, baking powder, and pumpkin spice. Add to the butter mixture and beat until just combined.
Load the cookie dough into a cookie press which has been fitted with the disc of your choosing.
Press the dough onto the prepared baking sheet, leaving 1 inch of space between each cookie.
Bake for 8 minutes. Remove from oven and allow the cookies to cool slightly on the baking sheet for 2 minutes. Transfer the cookies to a wire cooling rack to finish cooling.
In the photographs, you will note there are different colours of cookies. I divided the dough into three equal portions and added a little bit of brown food colouring to one bowl, and a little bit of peach food colouring to another bowl. The third bowl of dough was left without colouring. Beat the colours into the dough until well incorporated.I started pressing the dough with my cookie press, starting with the brown dough first. I did not clean out the press after each colour on purpose. That is why some of the cookies are a solid colour and others blended. This is just an option. You don't have to use food colouring at all. You can also clean the cookie press after you use up each colour to keep the colours from mixing.