Step 1: Preheat your oven to 350°F (175°C) for even baking.
Step 2: In a large mixing bowl, combine the confetti cake mix, vegetable oil, and eggs. Whisk until well combined; the dough will be thick and slightly sticky.
Step 3: Gently fold in the sprinkles until evenly distributed throughout the dough.
Step 4: Using a spoon or cookie scoop, portion out the dough onto a baking sheet lined with parchment paper. Leave space between each cookie.
Step 5: Bake for 10-12 minutes, until the edges are lightly golden. The centers may look slightly underbaked.
Step 6: Let cool on the baking sheet for 5 minutes before transferring to a wire rack. Enjoy!