Line a baking sheet with parchment paper or spray lightly with a cooking spray.
Mix, cake mix, gelatin, eggs, and butter together. Using a 2 inch cookie scoop place dough onto cookie sheet spaced apart. Add sprinkles to the top of dough.
Bake for 9-12 minutes. Remove from oven and let cookies cool on baking sheet for 3-4 minutes and then remove and place cookies on a cooling rack to completely cool. Enjoy.