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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How to Make Box Mix Brownies Even Better (7)

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

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 5 from 3 reviews

  • 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

What can you add to box brownies to make them better? ›

When the back-of-box instructions call for water, try some instant espresso or strong-brewed coffee for roasty, toasty notes that pair impeccably with chocolate. Or use milk or half-and-half for even more richness. And for cakey instead of fudgy brownies, add an extra egg for more lift and spring.

How do you jazz up a boxed brownie mix? ›

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 can I improve my Betty Crocker brownie mix? ›

Six Sneaky Ways To Make Brownie Mix Taste Homemade
  1. Use melted butter instead of oil. ...
  2. Use milk, flavored creamers, or brewed coffee instead of water. ...
  3. Add extracts or flavorings. ...
  4. Add mix-ins like cookies and candies. ...
  5. Underbake, just slightly. ...
  6. Toppings.
Jan 19, 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 brownies? ›

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!

What happens if you use milk instead of water in 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.

Should you chill brownie mix before baking? ›

Recently, as I was reading through the comments on all our brownie recipes, one suggestion in particular stood out: Refrigerate the batter overnight for a richer, chewier brownie.

What can you add to your brownie mix to pump up the chocolate flavor? ›

Add coffee or instant espresso powder to your brownies for an even deeper, more complex chocolate flavor. Swirl them with peanut butter, cream cheese, or even pumpkin filling to mix things up.

How do you upgrade store bought brownie mix? ›

Salt + Chocolate = BFFs

This is the easiest way to upgrade boxed brownies. Salt enhances the natural flavors and sweetness in chocolate and suppresses its bitterness. Sprinkle a few pinches of flaky salt on top of the brownie batter before baking.

Is Duncan Hines or Betty Crocker better for brownie mix? ›

If you like chewy, sticky brownies, I recommend: Betty Crocker Dark Chocolate Brownie Mix. If you like light, less dense brownies with a picture-perfect sugar top that flakes when sliced, I recommend: Duncan Hines Chewy Fudge Brownie Mix.

How to make box brownie mix more cakey? ›

Add an extra egg to your brownie batter to make more cake-like brownies. There are directions on the back of the box.

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.

What happens if I add more milk to brownies? ›

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.

How many eggs does Betty Crocker brownies need? ›

Prep Instructions

*For cakelike brownies, use 2 tablespoons water, 1/2 cup vegetable oil and 3 eggs.

How do you package brownies nicely? ›

Don't hesitate to pack each brownie you sell individually. You can use small and clear cellophane bags to do that. Another option is to use mini boxes, which may cost you a bit more (but will bring better results). It is one of the brownie packaging ideas that demands more time and patience.

Should I put tin foil over brownies? ›

Lining baking pans with foil just makes it easier to lift desserts out of the pan cleanly. When you're planning to portion and give brownies or bars...or place them on a platter, it's nice to have them cut neatly. Without the help of foil, that first brownie (and usually the first row) is always a mangled mess.

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