Preheat the oven to 350℉ and prepare an aluminum cookie sheet by placing either parchment paper or a silicone baking mat on it.
In a medium sized mixing bowl, combine the flour and baking powder and mix together. Set this aside.
Cube a cup of salted butter and then, in a stand mixer with the paddle attachment, combine the cubed butter with the granulated sugar. Mix until creamed together well.
To the stand mixer, add in the egg and vanilla extract and mix until combined.
Slowly add in the dry ingredients in the mixing bowl to the stand mixer.
Roll the dough out to 3/8" thick and use the cookie cutters to cut out the cookies. Place the cookies onto the prepared baking sheet and bake for 7-11 minutes or until the tops of the cookies no longer look wet. When baking the cookies, only bake 6-8 cookies at a time to leave proper space between each cookie to cook without spreading. Overcrowding the cookie sheet will cause spread.