Prepare the Dough. In a large mixing bowl, combine your brownie mix, eggs, oil, and water. Mix until well combined, and the dough is thick. Stir in chocolate chips if desired.
Scoop the Dough. Preheat your oven to 350°F. Line a baking sheet with parchment paper. Using a spoon or cookie scoop, portion out dough balls and place them on the baking sheet, spacing them about 2 inches apart.
Bake to Perfection. Bake the cookies for 9-11 minutes, until the edges are set but the centers are still soft. They’ll firm up as they cool, creating that perfect brownie-like consistency.
Cool and Enjoy. Let the cookies cool on the baking sheet for a few minutes, then transfer to a wire rack to cool completely.