Preheat oven to 350°F. Mix cake mix and pumpkin puree (and cinnamon if using) in a bowl of a stand mixer until the batter is smooth. The batter will be quite thick. Stir in chocolate chips.
Line cookie sheet with parchment paper. Using an ice cream scoop, scoop dough batter and place onto cookie sheet, spread 1 inch apart. The batter will be quite sticky so you can't really shape the cookies.
Bake for 10-15 minutes until cookies can be moved off parchment paper without sticking to bottom.
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.