Place cake mix, room temperature butter, eggs and milk, pumpkin, and pumpkin pie spice into a mixing bowl and mix on medium speed for two minutes, scrape down the sides after one minute. Stir in chocolate chips.
Use a large scoop (3 Tablespoon size) it helps them to all come out in a uniform shape, into your lined cupcake pans. Bake at 325 degrees for 20 minutes. Let cool completely.