- Preheat your oven to 350°F (175°C) and grease a 9x13-inch baking pan or line it with parchment paper for easy removal. 
- In a large mixing bowl, combine the cake mix, melted butter, and eggs. Stir until the mixture is fully combined and smooth. 
- If you want an extra chewy texture, mix in the brown sugar to your batter and stir until blended. 
- Once combined, fold in the chocolate chips, ensuring they are evenly distributed throughout the batter. 
- Pour the batter into the prepared baking pan and spread it evenly. 
- Bake in the preheated oven for 18-22 minutes, or until the edges are lightly golden and a toothpick inserted in the center comes out with a few moist crumbs. 
- Allow the bars to cool completely in the pan before cutting them into squares. Enjoy your sweet creation!