Preheat oven to 350℉ – Combine the cake mix, melted butter, egg and pumpkin pie spice. Mix until soft dough forms. Let dough stand at room temperature for 5 minutes.
Shape into 1 inch balls.
In a separate bowl, whisk together sugar and cinnamon. Roll formed balls into cinnamon-sugar.
Place balls 2 inches apart onto ungreased cookie sheet. Bake 12-14 minutes. Transfer to a cooling rack. Store in an airtight container.