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How to Make Box Brownie Mix Taste Better

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Easy brownie hacks to make box brownies better.

Sometimes baking demands a need for speed — and that’s where a good brownie box mix comes in. Here are tips and hacks for making a box brownie taste better, from which is the best brownie mix to bonus ingredients. Hack a box brownie mix into the best brownies ever.

making box brownies taste better with baking hacks
Fudgy Ghirardelli brownies made better with secret ingredients.

How to Make Box Brownie Mix Taste Better

As a classically-trained pastry chef, this should be a recipe for decadent scratch brownies made with the finest cocoa powder and chocolate. This is not that article. This is about how to save time and hack a boxed brownie mix to make brownies taste better. Homemade, even.

Good brownies taste fudgy and rich, with that nice crackled skin on top and ever-so-slightly crisp around the edge pieces. Great brownies have all that, plus a deep chocolate flavor and maybe some texture from chocolate chips and some walnuts.

Here’s how to get a better-tasting brownie out of the best brownie mix.

hack boxed brownies with extra ingredients to make them taste better

Hack your way to better brownies by starting with the best brownie mix.

There is only so much lipstick you can put on a chocolate box brownie pig, so to speak. So the first step is to start with the best brownie mix. Once you have the good starting point of the best brownie mix, you can make the box brownie mix even better.

What is the best box brownie brand?

The best box brownie mix is Ghirardelli. I recommend either Ghirardelli’s Double Chocolate or Chocolate Supreme brownie mixes. Both are excellent.

Do not just take my word for it. Multiple sources, including Cook’s Illustrated and The Kitchn, agree that this brand is by far the best. (F.Y.I.: Duncan Hines gets a big thumbs-down.)

Ghirardelli boxed brownie recipe hacks with ingredients vanilla espresso powder egg oil

Step Two to Hack a Box Brownie Mix: Add Secret Ingredients

Every pastry chef knows that certain “secret” ingredients heighten certain flavors, and may not be listed in a recipe’s ingredients. Fresh lemon juice, for example, heightens and brightens the flavors of fruit in fruit desserts and sweets, like pies, tarts, jams, and preserves.

The best ingredients to add flavor to box brownies are:

  • Vanilla extract
  • Expresso powder
  • An extra egg yolk

For brownie purposes, as with chocolate in general, the best secret ingredient is coffee. Instant espresso powder, to be exact. Just as lemon juice brightens fruit, coffee adds flavor and depth to chocolate. After a bit of taste testing, I prefer Medaglia D’Oro, an Italian brand that is widely available.

The other secret ingredient is pure vanilla extract. The sweet aroma adds an extra layer of depth to the chocolate flavor.

Finally, adding an extra egg yolk to the box brownie mix will make the brownies over-the-top fudgy and rich.

box brownie mix better with ingredient hacks

Step Three: Know which extra ingredients to add

Finally, kick the brownies up with added bonus ingredients for an extra-decadent, homemade-y dessert. Here are some ideas:

  • Add a teaspoon of instant espresso powder to amp up the chocolate flavor
  • Swirl in dollops of peanut butter
  • Add an extra egg yolk to make the brownies a little richer
  • Add 1/2 cup chocolate chips
  • Add 1/2 cup chopped walnuts
  • Add 1/2 cup peppermint pieces
  • Add a large handful of mini pretzels. Don’t chop or break them up. Stirring them into the brownie batter and later, cutting the brownies, will break them up just enough.

how to make box brownies taste better

Step Four to the Best Box Brownie Mix: Lie.

No one needs to know that you hacked a boxed brownie mix into such a delicious “homemade” brownie dessert. Because you added so many great additional ingredients — not to mention your own egg and oil as directed by the box — your brownies officially have been transformed into homemade.

The way I see it, Ghirardelli merely premixed the dry ingredients (sugar, flour, cocoa, leavening) for you, like the personal baking assistant you deserve. Enjoy.

Ghirardelli boxed brownies with baking hacks

Love learning how to make box brownie mix better? You’ll also like:

boxed brownie mix with vanilla and espresso hacks in tray with plate of brownies

How to Make Box Brownie Mix Better: Easy Baking Hacks

Author: Lisa Ruland
Your secret recipe for the best brownies in town. No one needs to know they came from a box mix. Now, they're even better.
Prep Time5 minutes
Cook Time45 minutes
Servings: 12 people

Ingredients

  • 1 box Ghirardelli brownie mix of choice
  • 1 egg, or per box ingredients
  • 1/3 cup canola or vegetable oil, or per box directions
  • 1/4 cup water, or per box directions
  • 1 teaspoon instant espresso powder
  • 2 teaspoons pure vanilla extract
  • pinch kosher salt
  • 3/4 cup chopped walnuts, optional
  • 1 cup chocolate chips, optional (Add if the mix does not already have them. I like Hershey's Special Dark chocolate chips.)

Instructions

  • Preheat the oven to 325°F, or whatever is on the box, and grease or line your baking dish. I use an 8" x 8" square brownie pan.
  • In a medium-sized mixing bowl, whisk together the oil, water, egg, vanilla, and espresso powder. Don't worry if the espresso powder forms blobs. Just keep whisking a little more and it will all dissolve.
  • Add the dry brownie mix to the liquid, along with a pinch of salt. Add the nuts and chocolate chips, if using. Stir just until fully combined. Small lumps in the batter are ok.
  • Bake according to the package directions. Let cool before cutting and serving, either plain or garnished with berries, whipped cream, ice cream, or powdered sugar.
    PRO TIP: Brownies are very sticky when cut. To get nice, clean edges, slice through the brownies, then pull the knife toward you to remove it, instead of lifting it out of the brownies. Then wipe the blade down with a warm, wet paper towel between cuts.

Disclaimer: Nutrition information is provided for courtesy purposes only, and is an estimate not verified by medical or nutrition experts. Read the full nutrition disclaimer.

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75 comments

  • Sandra Reid Swanson

    Haha sounds like I’ve been hitting the Grand Marnier bottle,sorry distracted,it should have read,may I add Grand Marnier to Ghirardelli Brownie mix ,instead of water??

    • Unpeeled

      Hi, Sandra! No worries!! Hah. And in any event, who doesn’t need to hit the Grand Marnier this year? I LOVE the idea of a boozy brownie. I think a full 1:1 substitution would work if you want a noticeable flavor (in this case, 1/4 cup water with grand marnier). Also, add one extra tablespoon water. Alcohol will evaporate more than water while baking. I’d start with a little less, maybe 1/8 cup, and go from there, if you wanted something more subtle. Cassis and framboise would work well, too. Keep me posted!

  • Sandra Reid Swanson

    Would I be able to add Grand Marnier to Marnier to Bronie Mix instead of water?

  • 5 stars
    I used to buy a different brand but Ghirardelli is definitely better and I did add the espresso and vanilla. My family thought I was some kind of rock star for making these!

  • 5 stars
    Love this!

  • 5 stars
    All the thumbs up. Small changed, but noticeably better. Everyone at the little gathering I went to was RAVING and I told them they were homemade! 🙂

  • Becca S.

    5 stars
    Over the top decadent. I am converted. I already used Ghirardelli because I think I read in Cook’s Illustrated or something that it was their favorite, but I added the vanilla, salt, and espresso powder and it really tasted just…more. Excellent trick.

  • 5 stars
    I did all of your tricks and they definitely tasted like the best brownies I have ever had! I love the espresso powder. Can I do this with other chocolate desserts?

  • I use the Ghiradelli box mix all the time but have never though to doctor it up. Love these ideas. I’m also all about the ganache that the reader above mentioned. Very decadent 🙂

  • Beverly

    Oh I so do this! Same mix same Italian instant coffee ! Compliments all the time!
    But best of all I frost with chocolate ganache! Just same brand dark chocolate chips stirred into heated heavy cream and dash vanilla! Stunning!,

    • Unpeeled

      Hah! Isn’t it a great little trick? And WOW about the chocolate ganache. That sounds amazing. I am going to try that next time. Thanks!

4.90 from 28 votes (10 ratings without comment)

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Author Lisa Ruland

Meet the Author

Lisa Ruland

Hi and welcome to Unpeeled! I’m Lisa Ruland — a pro baker and recovering lawyer. After working at some top NYC’s bakeries, I transitioned to food writing, and I’m thrilled you’re here. My goal is to share great recipes you can trust, plus cooking tips, travel dining guides, and more. You may also have seen me in Bon Appétit, Saveur, Food52, The Washington Post, Eater, and beyond.

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