Preheat the Oven: Preheat your oven to 350°F (175°C).
Mix the Ingredients: In a large bowl, combine your cake mix, eggs, and vegetable oil. Stir until well blended. If you're adding chocolate chips, sprinkles, or nuts, fold them in at this stage.
Scoop the Dough: Using a cookie scoop or tablespoon, scoop out dough and place them on a parchment-lined baking sheet about 2 inches apart.
Bake: Bake the cookies in the preheated oven for 8-10 minutes until the edges are lightly golden. They may look a little soft, but they will firm up as they cool.
Cool and Enjoy: Let the cookies cool on the baking sheet for about 5 minutes before transferring them to a wire rack.