Prep: Preheat oven to 350°F and prepare a cookie sheet by lining with parchment or coating with cooking spray. The cookies spread out quite a bit so it may be necessary to use more than one baking sheet or bake in batches.
Wet Ingredients: In a medium bowl, whisk together eggs, oil, and vanilla (optional) until fully combined.
Combine: Add cake mix to liquid ingredients and stir with a spatula or spoon to form a smooth dough.
Portion: Form round balls using 2 rounded tablespoons of dough and place 3-4 inches apart on the cookie sheet.
Bake: Bake for 13-15 minutes, rotating halfway through. Cookies will be done when they are almost fully set on the edges and slightly golden on the bottom.
Store: Let cool for a couple of minutes on the cookie sheet before transferring to a wire rack to let cool completely. Store in an airtight container at room temperature for 3-4 days or in the freezer for up to 3 months.
Freezer Instructions
Freeze for Later: To freeze before baking, scoop or shape the dough, place on a baking sheet to flash freeze, then transfer to an airtight container or freezer bag. Freeze for up to 3 months.To freeze after baking, store in an airtight container or ziploc bag for 3 months. Make sure they are fully cooled first.Prepare from Frozen: Bake frozen cookie dough according to the recipe instructions – baking times will still be the same. For baked cookies, let thaw to room temperature and enjoy.
Notes/Tips
Using our homemade yellow cake mix will result in cookies that are thinner, crispy on the outside, and doughy in the middle (but include NO additives or preservatives). Using a store-bought mix will create thicker, cake-like cookies with a recognizable “cake mix/batter” flavor.
If using store-bought cake mix, be sure to get a 15.25 ounce box or else the cookies won't turn out correctly.
For variations of this recipe, be sure to check out these other recipes: