Step 1: Preheat and Prepare: Preheat the oven to 350F (175C). Line baking sheets with parchment paper or silicone baking mats. This prevents sticking and makes cleanup easier.
Step 2: Combine Ingredients: In a large bowl, combine the cake mix, vegetable oil, and eggs. Mix until just combined. Avoid overmixing, as this can result in tougher cookies. The dough will be thick.
Step 3: Add Optional Ingredients (Optional): If desired, gently fold in any add-ins, such as chocolate chips, sprinkles, or chopped nuts. Distribute the add-ins evenly throughout the dough.
Step 4: Drop and Shape: Drop rounded tablespoons of dough onto the prepared baking sheets, leaving about 2 inches between each cookie. For a more uniform appearance, use a cookie scoop.
Step 5: Bake: Bake for 10-12 minutes, or until the edges are lightly golden and the centers are set. Avoid overbaking, as this can result in dry cookies.
Step 6: Cool: Let the cookies cool on the baking sheets for a few minutes before transferring them to a wire rack to cool completely. This prevents them from breaking.
Optional Tips: For chewier cookies, use melted butter instead of oil. To intensify flavors, add 1 teaspoon of extract, such as vanilla, almond, or lemon. For colorful cookies, use a Funfetti cake mix.