Add the cake mix, oil, and eggs to a large mixing bowl.
Beat on low speed until well blended, about one minute.
Add the chocolate chips and use a spatula to fold them into the cookie dough.
Refrigerate for 1 hour (or up to 2 days).
Preheat the oven to 350ºF. Line two baking sheets with baking parchment.
Scoop out the cookie dough onto the baking sheets (about two heaped tablespoons of dough per cookie).
Leave some space in-between each cookie as they will spread during baking.
Bake in the center of the pre-heated oven for 10 minutes.
Remove from the oven and leave to cool on the baking tray for 10 minutes then transfer to a wire rack to cool.