Take an 8x8-inch baking dish and spray it with nonstick cooking spray. Set it aside.

Preheat oven to 350ºF.

Take a large mixing bowl, combine cake mix, eggs, oil, and chocolate chips in it.

After that, pour the batter into the baking dish and spread it evenly.

Now, bake it for 20 - 25 minutes. Check the doneness by inserting a toothpick in the batter. If it comes out clean, the brownies are ready.

Let the brownies cool completely before slicing