How to Make Box Mix Brownies Even Better (2024)

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Learn how to make box brownies better! These simple tips elevate your favorite box mix brownies to the next level. If you’re craving homemade brownies but not in the mood to bake from scratch, enter these 30-minute box mix brownies. Sprinkled with flaky salt (just like my reader-favorite salted brownie cookies!), you’ll love these fudgy, chewy brownies with crackly tops.

How to Make Box Mix Brownies Even Better (1)

Box Mix Brownie Hacks

Add chocolate chips–If the brownie mix does not include chocolate chips, add up to 1 cup (170 grams) semi-sweet or dark chocolate chips. If the mix includes chocolate, add at least 1/2 cup (85 g) chocolate chips for richer brownies.

Add nuts–Add a handful of finely chopped pecans or walnuts if you love brownies with nuts.

Add mix ins–Jazz up a basic brownie mix with chopped mini peanut butter cups, white chocolate chunks, or your favorite chopped up candy bar.

Add a swirl–Swirl in spoonfuls of peanut butter or Nutella before baking. Measure out 1/3 cup (85 grams) peanut butter or Nutella in a small bowl and microwave for 10 to 15 seconds. Dollop over the top of the brownie batter and gently swirl with a toothpick. Tap pan sharply before baking.

Add salt–Flaky salt takes basic brownies to a new level of decadence!

Add a topping–Drizzle the baked brownies with salted caramel sauce, butterscotch sauce, or top with vanilla ice cream and chocolate fudge sauce!

Don’t overbake–The key to fudgy box brownies is to bake just until set (a toothpick or tester should emerge with a few fudgy crumbs).

Craving more brownies? You may also love my easy cocoa powder brownies, fudgy brown butter brownies, or caramel-topped turtle brownies!

How to Make Box Mix Brownies Even Better (2)

Key Ingredients

Here’s what you need to make box brownies taste homemade:

  • Butter–Boxed brownie mix typically calls for vegetable oil. Using butter is the secret to brownies that taste like they’re baked from scratch (use unsalted butter to control the salt level).
  • Espresso powder–Intensifies the chocolate flavor. I use Starbucks VIA because it dissolves easily in the brownie batter.
  • Vanilla extract–Pure vanilla extract adds rich flavor to brownies.
  • Eggs–Most brownie mixes call for one whole egg. Adding one large egg plus an extra egg yolk gives brownies an ultra fudgy texture.
  • Chocolate Chips–Even if your brownie mix contains chocolate, plan to add chocolate chips. The additional sugar from the chocolate chips creates a shiny, crackly top as the brownies bake.
  • Boxed Brownie Mix–Use your favorite brownie mix that’s approximately 18 oz (502 grams).
  • Flaky salt–Elevates every chocolate recipe! I love Maldon flaky salt.
How to Make Box Mix Brownies Even Better (3)

How to Make the Best Box Brownies

Preheat oven to 350°F and line an 8-inch square metal baking pan with parchment paper letting a 2-inch overhang extend over sides of pan.

Combine melted butter, instant espresso powder, vanilla, egg, and egg yolk in a large bowl. Whisk until smooth and combined. Add box brownie mix to the bowl.

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How to Make Box Mix Brownies Even Better (5)

Fold in brownie mix with a spatula just until combined and no flour streaks remain. Expect a thick batter!

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Add chocolate chips and fold in to the batter. Don’t skip the additional chocolate – the added sugar helps the brownies form a shiny, crinkly top!

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How to Make Box Mix Brownies Even Better (9)

Scrape brownie batter into prepared pan and smooth the top. Gently tap the pan once to remove air bubbles.

Bake these brownies until just set, 25 to 26 minutes. A toothpick inserted in the center should come out with a few fudgy crumbs attached. Sprinkle the tops of the brownies with flaky salt.

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How to Make Box Mix Brownies Even Better (11)

Let the brownies cool completely, then cut into squares with a sharp knife. Store brownies in an airtight container at room temperature.

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Favorite homemade brownie recipes:

  • Ultimate Crinkle Brownies
  • Decadent Triple Chocolate Brownies
  • Salted Caramel Turtle Brownies
  • Peanut Butter Cup Brownies
  • Fudgy Brown Butter Brownies

Did you try theseBetter Box Brownies? Let me know by leaving a comment and rating below!

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How to Make Box Mix Brownies Even Better (13)

How to Make Box Mix Brownies Even Better

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  • Author: Laura Kasavan
  • Prep Time: 5 minutes
  • Cook Time: 25 minutes
  • Total Time: 30 minutes
  • Yield: 12 to 16 brownies
  • Category: Dessert
  • Method: Bake
  • Cuisine: American
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Description

Learn how to make box brownies better! These tips elevate your favorite box mix brownies to the next level. You’ll love these fudgy, chewy brownies with crackly tops.

Ingredients

  • 6 Tbsp (84 g) unsalted butter, melted
  • 1 tsp (8 g) instant espresso powder
  • 1 1/2 tsp (6 g) vanilla extract
  • 1 large egg (50 g), at room temperature
  • 1 large egg yolk (17 g), at room temperature
  • 1 18 oz (502 g) box brownie mix
  • 1/2 cup (85 g) semisweet chocolate chips

Topping

  • flaky salt (such as Maldon)

Instructions

  1. Preheat oven to 350°F and line an 8-inch square metal baking pan with parchment paper.
  2. Make brownies:Combine melted butter, instant espresso powder, vanilla, egg, and egg yolk in a large bowl. Whisk until smooth and combined. Add box brownie mix to the bowl and fold in with a spatula just until combined and no flour streaks remain (batter will be thick). Fold in chocolate chips.
  3. Scrape brownie batter into prepared pan. Use a piece of parchment paper to press batter evenly into pan and smooth the top. Gently tap pan once to remove air bubbles.
  4. Bake brownies for 25 to 26 minutes, until the top is set and a toothpick inserted in the center comes out with a few crumbs attached. Remove from oven and place on a wire rack to cool completely. Sprinkle the tops of the brownies with flaky salt.
  5. Lift parchment and place brownies on a cutting board. Cut into squares with a sharp knife. Store leftover brownies in an airtight container at room temperature.

Notes

Boxed brownie mix: Use your favorite brownie mix that’s approximately 18 oz (502 grams). For a larger 20 oz brownie mix (567 grams), I recommend increasing the butter to 1/2 cup (112 grams).

Chocolate chips: If the box brownie mix does not include chocolate chips, add up to 1 cup (170 grams) semisweet or dark chocolate chips. If the mix includes chocolate, add at least 1/2 cup (85 g) chocolate chips.

Flaky salt: I use Maldon Sea Salt Flakes.

Peanut butter or Nutella swirl: Measure out 1/3 cup (85 grams) peanut butter or Nutella in a small bowl and microwave for 10 to 15 seconds. Dollop over the top of the brownie batter and gently swirl with a toothpick. Tap pan sharply before baking.

Bake time: May vary based on the size of your brownie mix and any swirls or additions. Start testing for doneness after 25 minutes, and continue to test every 2 minutes until a toothpick emerges with a few moist crumbs attached.

Chocolate

How to Make Box Mix Brownies Even Better (16)

Meet Laura

Hi, I'm Laura and I'm so happy you're here! Welcome to Tutti Dolci Baking Recipes, a baking blog celebrating all things sweet! I share approachable baking recipes and elevated classic desserts for every home baker. My goal is to inspire you to bake from scratch with kitchen-tested recipes you can count on.

More about me

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How to Make Box Mix Brownies Even Better (2024)

FAQs

How to make a boxed brownie mix better? ›

Add nuts – Add a handful of finely chopped pecans or walnuts if you love brownies with nuts. Add mix ins – Jazz up a basic brownie mix with chopped mini peanut butter cups, white chocolate chunks, or your favorite chopped up candy bar. Add a swirl – Swirl in spoonfuls of peanut butter or Nutella before baking.

How to doctor up Duncan Hines brownie mix? ›

  1. Add more chocolate. It's easy to bring even more chocolatey goodness to brownies when you throw in a handful of chocolate chips. ...
  2. Mix in fruit and nuts. ...
  3. Use milk instead of water. ...
  4. Add coffee. ...
  5. Use a dash of vanilla. ...
  6. Give them a salty spin. ...
  7. Top them with something festive. ...
  8. Mix in candy.
May 5, 2021

What happens when you add an extra egg to brownie mix? ›

Want Fudgy Brownies? Add an Extra Egg Yolk! As you may know, eggs not only act as a binding agent in baked goods, but they also add structure, richness, and enhance texture.

Can I use butter instead of oil in brownie mix? ›

You can absolutely substitute butter for the vegetable oil. Use the same quantity specified in the directions (for example, if it calls for 1/3 cup of oil, use 5 1/3 tablespoons of butter). Melt it down, then let it cool a bit. You might not ever go back to oil!

How do you jazz up store bought brownie mix? ›

Here are seven easy ways I dress up a box of brownies when the craving strikes.
  1. Switch the Liquid. Switch up the liquid for something more flavorful—boxed brownie mixes typically call for water. ...
  2. Swirl It Up! ...
  3. Add an Egg Yolk or Two. ...
  4. Salt + Chocolate = BFFs. ...
  5. Use a Flavorful Fat. ...
  6. Top It With More Chocolate. ...
  7. Add Some Fruit.

How do you upgrade a box of brownies? ›

Add a teaspoon of instant coffee or espresso powder. Throw in a handful of nuts—pecans, walnuts, macadamia, whatever you have on hand. Scoop in a palmful of dried or frozen fruit. Add an extra splash of the top-shelf vanilla extract, or a dab of vanilla paste, or a dash of vanilla powder, to the batter.

Is it better to use milk or water in brownie mix? ›

Milk. Most brownie mixes call for water. While water does the job, you can add some extra flavor and moisture by mixing some of that water with something richer, like milk. If you want to swap it out completely, be prepared for a more chewy and fudge-like brownie from the extra fat.

Can I use milk instead of water for Duncan Hines brownies? ›

Use milk, flavored creamers, or brewed coffee instead of water. Sticking with the theme of richer flavored brownies, using milk instead of water is an absolute MUST. The fat from the milk adds flavor and fudgy texture that water just can't achieve.

How can I improve my Betty Crocker brownie mix? ›

One change is to use milk or heavy cream instead of water. This change will make brownies more moist and gooey since milk is more fatty and flavorful than water. A second change is to use butter instead of oil. For similar reasons to using milk, butter adds a rich and more decadent quality to the batter.

What makes brownies fudgy instead of cakey? ›

Fudgy brownies have a higher fat-to-flour ratio than cakey ones. So add more fat—in this case, butter and chocolate. A cakey batch has more flour and relies on baking powder for leavening. The amount of sugar and eggs does not change whether you're going fudgy or cakey.

How much vanilla extract should I add to brownie mix? ›

Adding vanilla extract is also one of my favorite brownie mix hacks. This will enhance the flavor and make your brownies taste even better! It doesn't take much either, one teaspoon will do to make a difference in any baked good.

What can I add to brownie mix instead of eggs? ›

Baking Powder and Oil: 1 teaspoon vegetable oil + 2 tablespoons water + 2 teaspoons baking powder = 1 large egg. This works great as a substitute in a recipe that uses the egg as a leavening agent and it is made from simple and easy pantry staples.

What does olive oil do to brownies? ›

It makes them richer, adds a fudge-like texture, and enhances the flavor of the chocolate. In addition, it's an incredible preservative, so the brownies stay moist for longer! Olive oil has been gaining popularity in recent years as a substitute for butter and other vegetable oils in baked goods.

What can I add to brownie mix? ›

Brownie Add-Ins

If you're looking for something to mix into your brownie batter to add texture, try one of these variations: semi-sweet chocolate chips or marshmallows. chopped nuts such as peanuts, walnuts, pecans or almonds. Swirl in peanut butter or marsmallow fluff after you have brownie batter in the pan.

What is the best oil to make brownies with? ›

Most brownie recipes call for some kind of oil — usually vegetable oil or canola oil. This oil acts as the primary fat in brownie batter, giving it that delicious, fudgy texture we all know and love.

What happens if you add baking soda to a brownie mix? ›

Leavener in Brownies

Since leaveners lift and give a lighter, airier texture to baked goods, we're only using 1/8 teaspoon baking soda, for just enough leavening to get a nice thick texture. Feel free to omit the baking soda if using Dutch-processed cocoa powder.

Should brownie mix be thick or runny? ›

The ideal consistency of brownie mix is thick and gooey, similar to a thick cake batter. When you mix the ingredients together, the batter should be smooth and free of lumps, with a slightly sticky texture. This consistency is important for achieving moist and fudgy brownies that are rich in flavor.

Can I use olive oil instead of vegetable oil for brownies? ›

Yes, you can use olive oil in brownies!

Olive oil has been gaining popularity in recent years as a substitute for butter and other vegetable oils in baked goods. Not only is it delicious but a healthy alternative cooking fat that can be used in most traditional baking recipes.

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