Cut butter into cubes and cream with sugar (nope, it doesn't need to be room temp)
Add baking powder, salt, vanilla and egg to creamed butter and sugar
Add flour one cup at a time. This is easiest in a stand mixer like a Kitchen Aid. Mix on medium speed until well incorporated. You will know it's done when the dough starts to pull away from the sides of the bowl. It shouldn't feel sticky to the touch.
Roll dough out on wax paper with extra flour to 3/8 inch thickness
Cut cookies with desired shapes and place on cookie sheet about 1-2 inches apart
Bake at 400º for 8-9 minutes. These cookIes DO NOT SPREAD🙌🏻