Preheat oven to 350 degrees.
Add cake mix, eggs, pumpkin, and oil to a large mixing bowl.
Beat with a mixer until well combined and a dough forms. It will be sticky.
Using a small scoop, drop scoops of dough in rows (3 across works best - they will spread) on a lined baking sheet.
Bake for 10-12 minutes until cookies are soft baked and not shiny.
Let cool slightly then move to a cooking rack with a plate or tray underneath.
Mix together powdered sugar and pumpkin pie spice in a small bowl.
Add to a shaker or shifter and shake sugar mixture on top of each cookie.
Repeat with remaining dough. This recipe makes a little over two dozen large cookies!