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    Home » Desserts Recipes

    Brookie Bars from Brownie Mix

    Published: Oct 31, 2022 by Nora Reyes · This post may contain affiliate links. If you make a purchase through links on our site, we may earn a commission. · 4 Comments

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    Jump to Recipe Print Recipe

    Brookie Bars from Brownie Mix are a delicious mix of brownies and chocolate chip cookies. These are so easy to make and are always a hit!

    Brookie Bars from Brownie Mix on parchment paper.

    Upgrade your boxed brownies in 7 other ways:

    • Cheesecake Brownies from Brownie Mix
    • Oreo Brownies from Brownie Mix
    • Peanut Butter Brownies from Brownie Mix
    • Nutty Brownies from Brownie Mix
    • S'mores Brownies from Brownie Mix
    • Salted Caramel Pretzel Brownies from Brownie Mix
    • Birthday Brownies from Brownie Mix

    You may also like Chocolate Cake with Ganache Frosting, Salted Chocolate Chunk Shortbread Cookies, M&M Cookies, or Chocolate Crinkle Cookies.

    Jump to:
    • Ingredients you'll need
    • Tips for best brownies
    • How to make this recipe
    • Recipe FAQs
    • More about brownies
    • Other dessert recipes you may like
    • 📖 Recipe
    • 💬 Comments

    Ingredients you'll need

    For the brownie base

    Individual ingredients for the brownie base

    More ingredients

    Extra ingredients for brookie bars in individual containers.

    Notes and substitutions

    • Brownie mix: Use a regular-size (about 18 ounces) boxed brownie.
    • Water: Replace with milk, buttermilk, or brewed coffee to add richness and flavor.
    • Instant coffee: An optional ingredient that enhances the chocolate flavor and tames the sweetness of the brownies.

    Tips for best brownies

    • Bring eggs to room temperature and lightly beat them to incorporate them well without overmixing.
    • Grease and line the pan with parchment paper to prevent the brownies from sticking.
    • To avoid overbaking, check the brownies with a toothpick 2 minutes before they are done. Look for several separate crumbs for fudgy brownies and less for cakey brownies.
    • Cool the brownies before slicing. Refrigerating them improves their texture.

    How to make this recipe

    Step 1: Combine 3 tablespoons melted butter, 2 tablespoons granulated sugar, 2 tablespoons brown sugar, 1 egg yolk, and ½ teaspoon vanilla extract in a bowl.

    Step 2: Whisk together until combined, then add ¼ teaspoon baking soda and ¼ teaspoon kosher salt (use less for table salt).

    Whisking the wet ingredients in the bowl. Mixing baking soda with the wet ingredients.

    Step 3: Using a spatula, add ½ cup flour and mix until just combined or no flour is visible.

    Step 4: Add most of the chocolate chips, saving some for the topping.

    Mixing the flour with the wet ingredients in the bowl. Mixing the chocolate chip cookie dough in the bowl.

    Step 5: Make the brownie batter as directed in the package and spread it on a 9x9-inch pan. Drop spoonfuls of cookie dough on top, level with a knife, and top with the remaining chocolate chips.

    Adding chocolate chips to the unbaked brookie bars in the pan.

    Step 6: Bake according to package instructions. You can cover it loosely with aluminum foil to prevent the cookie dough from browning too quickly.

    Let the brookie bars set for at least an hour in the fridge before cutting. Refrigerate leftovers and consume them within 5 to 7 days.

    Slices of brookie bars on parchment paper.

    Recipe FAQs

    What are brookies made of?

    Brookies combine two classic American desserts—brownies and chocolate chip cookies. The result is a delicious hybrid dessert with marbled layers of brownies and chocolate chip cookies.

    Can I use cold eggs for brownies?

    You can use cold eggs, but be careful not to overmix the batter. Cold eggs won't ruin your brownies, but eggs at room temperature will blend evenly with other ingredients.

    What is the best oil for baking?

    A neutral-flavored oil is best for baking, such as canola or other vegetable oils. Mild-tasting oils like avocado oil, olive oil, and coconut oil can also be used.

    More about brownies

    If you'd like to know more, here are frequently asked questions on box brownies, including extra tips, troubleshooting, and more.

    Other dessert recipes you may like

    • crema de fruta on a spoon
      No-Bake Crema de Fruta (Filipino Layered Fruit Cake)
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      Tikoy Rolls
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      Biko
    • Bibingkang Malagkit on a plate with banana leaf.
      Bibingkang Malagkit
    Phone showing how to tag me on Instagram.

    Did you make this recipe? I would love to know! Your feedback helps me make better recipes.  Please rate, review, or comment below. Questions about this recipe are welcome, too!

    Let's connect on Facebook, Instagram, Pinterest, TikTok, Twitter, and Youtube. Be sure to tag me when you try any of my recipes @recipesbynora!

    📖 Recipe

    Brookie bars brownies

    Brookie Bars from Brownie Mix

    Delicious brownies mixed with marbled layers of chocolate chip cookies.
    4 from 4 votes
    Print Pin Rate
    Course: Dessert
    Cuisine: American
    Prep Time: 10 minutes minutes
    Bake Time: 25 minutes minutes
    Total Time: 35 minutes minutes
    Servings: 16
    Calories: 97kcal
    Author: Nora Rey
    Cost: $4-$6

    Equipment

    • 9x9-inch pan

    Ingredients

    For the brownie layer (see package instructions)

    • brownie mix about 18 ounces
    • eggs room temp & lightly beaten
    • water  sub:milk, buttermilk, or coffee
    • oil (canola, olive, or other vegetable oils)
    • ½ teaspoon instant coffee or ¼ teaspoon espresso powder  optional

    For the cookie portion

    • 3 tablespoons salted or unsalted butter melted
    • 2 tablespoons granulated sugar
    • 2 tablespoons light or dark brown sugar
    • 1 egg yolk
    • ½ teaspoon vanilla extract
    • ¼ teaspoon baking soda
    • ¼ teaspoon kosher salt use less for table salt
    • ½ cup all-purpose flour
    • ¼ cup bittersweet or semisweet chocolate chips divided
    US Customary - Metric

    Instructions

    • Combine melted butter, granulated sugar, brown sugar, egg yolk, and vanilla extract in a bowl.
    • Whisk together until combined, then add baking soda and salt.
    • Using a spatula, add flour and mix until just combined or no flour is visible.
    • Add most of the chocolate chips, saving some for the topping.
    • Make the brownie batter as directed in the package and spread it on a 9x9-inch pan.
    • Drop spoonfuls of cookie dough on top, level with a knife, and top with the remaining chocolate chips.
    • Bake according to package instructions. You can cover it loosely with aluminum foil to prevent the cookie dough from browning too quickly.
    • Let it set for at least an hour in the fridge before cutting.

    Notes

    Tips for best brownies:
    • Bring eggs to room temperature and lightly beat them to incorporate them well without overmixing.
    • Grease and line the pan with parchment paper to prevent the brownies from sticking.
    • To avoid overbaking, check the brownies with a toothpick 2 minutes before they are done. Look for several separate crumbs for fudgy brownies and less for cakey brownies.
    • Cool the brownies before slicing. Refrigerating them improves their texture.

    Nutrition

    Calories: 97kcalCarbohydrates: 7gProtein: 1gFat: 7gSaturated Fat: 2gPolyunsaturated Fat: 1gMonounsaturated Fat: 3gTrans Fat: 1gCholesterol: 39mgSodium: 82mgPotassium: 17mgFiber: 1gSugar: 4gVitamin A: 112IUCalcium: 7mgIron: 1mg
    Disclaimer: The nutritional information provided here is solely for informational purposes. I am not a certified nutritionist, and this data hasn't been evaluated by the Food and Drug Administration or any other authority. It shouldn't be seen as health or nutrition advice. The figures are estimates calculated from various food composition databases and might vary based on product types, brands, natural variations in produce, and ingredient processing methods. Individual results may differ.
    Tried this Recipe? Pin it for Later!Mention @recipesbynora or tag #RecipesByNora!

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    About the author

    Hi, I'm Nora! 

    Whether you're new to Filipino food or have loved it for so long, I sure am happy you're here!  I hope you'll find useful recipes that you can enjoy and share with family and friends.

    Learn more about me →

    Reader Interactions

    Comments

    1. Tracey

      January 28, 2025 at 10:59 am

      1 star
      Stick with the homemade version. This may be "easier" but definitely does not come out that great.

      Reply
      • Nora Reyes

        February 18, 2025 at 2:03 pm

        Hi Tracey, I totally understand—homemade from scratch is always great! This version is just an alternative for those who might want a quicker option. Everyone has their own preference. Thanks.

        Reply
    2. John

      July 16, 2023 at 2:10 am

      5 stars
      My favorite combination of all time.

      Reply
      • Nora Rey

        July 20, 2023 at 1:01 pm

        Oh, I hear you! Brookie brownies are the ultimate match made in dessert heaven! 🍪🍫🤩 The fudgy richness of brownies combined with the chewy delight of cookies is just unbeatable.

        Reply
    4 from 4 votes (2 ratings without comment)

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