Preheat oven to 350°F (175°C) and line a baking sheet with parchment paper. 
In a bowl, mix brownie mix, eggs, oil, and flour until a thick dough forms. 
Stir in chocolate chips if using. 
Scoop tablespoon-sized dough balls onto the baking sheet.
Bake for 8–10 minutes until edges are set but centers are soft. 
Let cool on the pan for a few minutes, then transfer to a wire rack. 
These brownie mix cookies are perfect for last-minute treats—soft, rich, and packed with chocolatey goodness!