Preheat oven to 375℉. Line a baking tray with parchment paper. Set aside.
Beat together butter and shortening (if using) until smooth. Add granulated sugar, brown sugar, egg, pumpkin puree, and vanilla, pumpkin spice, baking soda and salt and beat until combined.
Add the flour and mix until combined.
Refrigerate dough for 10 minutes. Meanwhile, in a separate small bowl mix ¼ cup granulated sugar and 1 teaspoon of ground cinnamon.
Roll into balls then roll into spiced sugar and place on the prepared baking sheet 2 inches apart. Bake 7-9 minutes. Allow cookies to cool in the baking sheet for 2 minutes before transferring cookies to a cooling rack.