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.

How to Make Box Mix Brownies Even Better (4)
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!

How to Make Box Mix Brownies Even Better (8)
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.

How to Make Box Mix Brownies Even Better (12)

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 to improve Betty Crocker box brownies? ›

6 Easy Ways to Make Boxed Brownies Better
  1. Get nutty.
  2. Add a hint of salt.
  3. Experiment with extracts.
  4. Swap Fats.
  5. Throw in something decadent.
  6. Add a Swirl.
Jan 10, 2017

What does adding an extra egg to brownie mix do? ›

If you want to get a little more creative with your brownie mix hacks, add an extra egg to the batter. The extra protein will help thicken up the batter and make it fluffier, creating a more decadent, fudgy texture. You can also add the yolk by itself in addition to the 2 eggs a box brownie mix typically calls for.

Should I use milk instead of water for box brownies? ›

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.

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 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.

Should brownie batter sit before baking? ›

Making Brownie Batter in Advance

Because most brownie recipes call for eggs, the batter shouldn't sit out for longer than two hours before baking. On the other hand, the sauce and dry ingredients can be made a few days in advance and refrigerated for freshness.

How to make Betty Crocker box mix better? ›

  1. Add an Extra Egg.
  2. Add Milk, Coffee, or Soda.
  3. Use Butter Instead of Oil.
  4. Add Instant Pudding.
  5. Up the Flavor with an Extract or Citrus Zest.
  6. Top the Cake with Homemade Frosting.
Oct 19, 2023

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.

How to make a box cake taste homemade? ›

8 Ways To Make Boxed Cake Mix Taste Homemade
  1. Swap Oil for Melted Butter.
  2. Exchange Water for Dairy.
  3. Enhance With Extracts.
  4. Incorporate Sour Cream or Mayo.
  5. Add Nuts.
  6. Make Homemade Frosting.
  7. Layer With Fillings.
  8. Turn it into a Poke Cake.
Apr 12, 2024

How to doctor up box brownies? ›

Adding a layer of cream cheese, marshmallow fluff, caramel, or peanut butter goes a long way towards turning a mix into something special. You can add this layer before or after baking the brownies.

What makes brownies fudgy vs 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 to elevate Duncan Hines brownie mix? ›

Here are some ideas:
  1. Add a teaspoon of instant espresso powder to amp up the chocolate flavor.
  2. Swirl in dollops of peanut butter.
  3. Add an extra egg yolk to make the brownies a little richer.
  4. Add 1/2 cup chocolate chips.
  5. Add 1/2 cup chopped walnuts.
  6. Add 1/2 cup peppermint pieces.
  7. Add a large handful of mini pretzels.
Mar 31, 2023

What makes brownies less 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 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 you cover brownies with foil or plastic? ›

Store brownies at room temperature by wrapping them tightly in plastic wrap or foil, or by placing them in an airtight container, such as a lidded tray or Tupperware container. This will prevent your brownies from going stale and keep possible contaminants out.

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