
Fall Back on Butter
Most boxed brownies use canola or vegetable oil. Sub in the same amount of melted butter for brilliant results. This makes the brownies that much richer and more delicious. Bonus points if it’s high-quality, like our Test Kitchen’s favorite butter.

Use Milk Instead of Water
We’ve encountered mixes in which water is the only liquid. Replace it with a richer, more flavorful liquid, such as milk, buttermilk or coconut milk. The extra fat from the milk will turn a normal box of brownies into a moist and gooey treat.

Add Salt
If you’ve ever found boxed brownies to be too sweet for your taste, stir a pinch of salt into the batter before baking. This’ll help bring out the deeper chocolate flavors. You can even try sprinkling some flaky sea salt on top of the brownies as soon as they come out of the oven.

Use Brewed Coffee
Just like milk, brewed coffee also works in replacing the water typically used for boxed brownies. This morning delight adds interest to the dessert by enhancing that chocolaty flavor without creating an overly indulgent end product.

Crank Up the Cocoa
If you like a fudgy brownie (sans mix-ins) but can’t get enough chocolate flavor, stir a little extra cocoa powder into the batter. This produces a super dense, chocolaty delicacy. Yum! Oh, and it helps if you start with a good mix; our Test Kitchen uncovered the best brownie mixes.

Stir in Espresso
A jolt of espresso powder is just the thing to amp up plain ol’ brownies. Stir a heaping teaspoon into the dry ingredients before adding the liquids, then bake as usual. Espresso not only makes the chocolate flavor more pronounced, but it also adds a subtle touch of beloved java flavor. Try more coffee-infused desserts.

Add Extracts
Here’s a small improvement that comes from an ingredient already in your pantry! A teaspoon of vanilla, almond, mint, even rum extract can go a long way in this chocolaty sweet. These flavors, in particular, complement the cocoa goodness. (Psst! Did you know it’s super easy to make homemade vanilla extract?)

Choose Chocolate Chunks
The most obvious way to enhance brownie mix is with, well, more chocolate. What’s not as obvious is which chocolate to choose. These semisweet chocolate chips are our Test Kitchen’s favorites. (When it comes to baking, we recommend semisweet chocolate over dark or milk varieties.) Chopped semisweet bar chocolate also adds texture and richness to the batter. And that’s not to mention these seriously fun flavored baking chips.

Swirl in Some Good Stuff
This trick makes your brownies stand out in more ways than one. Dollop cream cheese, fruit jam, pumpkin puree, peanut butter or caramel over brownie batter. Spoon it into the pan, then cut through the batter to create this wow-worthy effect. Your dessert will be prettier and tastier than every other treat on the table.

Go Nuts
Nuts and chocolate are a flavor combination made in heaven. In addition to scattering nuts on top of brownies, you can also add them directly to the batter, then bake as usual. Walnuts, pecans, almonds and peanuts all work beautifully. Just be sure to toast the nuts beforehand for extra depth.

Opt for a Topping
Want to perk up the brownies without interfering with the basic recipe? Add a topping. (This is fun for kids to help with, too!) Think a coat of frosting, peanut butterb or caramel or chocolate ice cream topping. Once you’ve slathered on a thick layer, sprinkle it with nuts, jimmies, toasted coconut, even flaky sea salt for some extra texture and fun.