Turn any boxed brownie mix into bakery-style brownies with a few simple upgrades! These Better Boxed Brownies are fudgy, rich, and taste completely homemade. Perfect for quick desserts, potlucks, or when you need an easy chocolate fix that delivers big flavor every time.
Preheat oven to the temperature listed on your brownie mix (usually 325°F to 350°F). Grease or line an 8×8 or 9×9-inch baking pan with parchment paper.
In a large mixing bowl, combine the brownie mix, eggs, melted butter, milk or coffee, vanilla extract, and salt if using.
Mix until just combined and no dry spots remain. Do not overmix for fudgy brownies.
Fold in chocolate chips or chunks if using.
Pour the batter into the prepared pan and spread evenly.
Bake according to box instructions (usually 20–30 minutes), checking 2–3 minutes early for doneness. A toothpick near the edge should come out with moist crumbs, not wet batter.
Cool brownies in the pan before cutting for clean edges and optimal texture.