Mix together the chocolate cake mix, oil, and eggs until well combined

Cover and chill the cookie dough for one hour in the fridge

Roll the dough into balls and roll each ball well in powdered sugar, then place onto a baking sheet

Bake the cake mix crinkle cookies at 350 degrees for 12-15 minutes, then transfer to a wire cooling rack to cool completely

Once cooled, store any leftovers in an airtight container at room temperature for 3-5 days