First, preheat your oven to 350 degrees. Add some parchment paper to your baking sheet.
Then in the bowl of a stand mixer, cream together the slightly softened butter and sugar for about 3 minutes.
Add in the egg and the pumpkin and mix together until nice and smooth.
In a separate bowl, sift together the flour, salt, cream of tartar, baking soda, and pumpkin pie spice.
Slowly mix the flour mixture into the wet ingredients on low speed. Combine until a dough forms.
In a separate small bowl, mix together the sugar and cinnamon to create the cinnamon sugar topping.
Roll the cookie dough into 1 inch balls and place into the cinnamon sugar mixture. Place cookie dough balls on parchment lined cookie sheet.
Lightly press down on the top of the dough balls to create a more round cookie like shape.
Bake in preheated oven for 10-12 minutes, or until edges are a nice golden brown color.
Cool on wire rack for 5 minutes before enjoying!
