How to Make Boxed Brownies Better
Published 2026-10-31
Boxed brownie mix is one of the easiest desserts there is, and a few small upgrades can make the results taste like they came from a bakery. Whether you prefer fudgy, chewy or cakey brownies, these tips help you get there with the mix already in your pantry.
For fudgier brownies
Use melted butter in place of oil and add an extra egg yolk. Both add richness and a dense, fudgy center. Slightly underbake: pull the pan when a toothpick inserted in the center comes out with moist crumbs, not clean. The brownies keep setting as they cool.
For more chocolate flavor
Stir in a handful of semi-sweet or bittersweet chocolate chips. Replace the water with strong coffee or add a teaspoon of instant espresso powder to deepen the chocolate taste. A spoonful of dark cocoa powder mixed into the dry mix also helps. A pinch of flaky salt on top balances the sweetness.
Fun add-ins and toppings
Swirl in peanut butter or caramel sauce before baking, fold in chopped nuts, or top with mini marshmallows during the last few minutes of baking for a s'mores version. For gluten-free guests, choose a mix labeled gluten free and keep the add-ins gluten free too.
Cutting and storing
Let brownies cool completely before slicing, and use a sharp knife wiped clean between cuts for neat squares. Mixes that let you bake small batches are handy when you only want a few brownies at a time. Store leftovers covered at room temperature for a few days or freeze individually wrapped squares.
Choosing the right pan
Pan material and size affect brownies. Metal pans bake faster and give crisp edges, while glass pans hold heat longer, so many mixes suggest lowering the oven temperature when using glass. A smaller pan makes thicker brownies that need more time; a larger pan makes thin, chewy brownies that bake quickly. Lining the pan with parchment, leaving some overhang, lets you lift the whole slab out for clean cutting.
