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    Home » Desserts

    Brookie Bars from Brownie Mix

    Published: Apr 2, 2022 · Modified: Apr 2, 2022 by Nora Rey · This post may contain affiliate links · Leave a Comment

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    Brookie bars from brownie mix are a delicious mix of brownies and chocolate chip cookies. They are so easy to make and are always a hit.

    Brookie bars on parchment paper.

    You can also upgrade your boxed brownies in seven 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
    Jump to:
    • Ingredients you'll need
    • Tips for best brownies
    • How to make this recipe
    • How to serve and store
    • Frequently asked questions
    • More about brownies
    • Watch how I make it here
    • Other dessert recipes you may like
    • 📖 Recipe

    Ingredients you'll need

    For the brownie base

    Assorted ingredients for the brownie layer in individual containers.

    Extra 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 the eggs to room temperature and lightly beat them to ensure they get incorporated well without overmixing.
    • Grease and line the pan with parchment paper so the brownies will not stick and come out easily.
    • Check the brownies two minutes before they should be done. Test with a toothpick — it should come out with several separate crumbs for fudgy brownies and less for cakey.
    • Cool the brownies before slicing. Refrigerating them improves their texture.

    How to make this recipe

    (1)In a bowl, combine the melted butter, granulated sugar, brown sugar, egg yolk, and vanilla extract. (2)Whisk together until combined. Mix in the baking soda and salt.

    (3)Using a spatula, add the flour and mix until just combined or until no dry flour is visible. (4)Add in most of the chocolate chips, saving some for the topping.

    Whisking the wet ingredients in the bowl. Whisking in some dry ingredients to the wet ingredients. Mixing the flour with the wet ingredients in the bowl. Mixing the chocolate chip cookie dough in the bowl.

    (5)Make the brownie batter as directed in the package and spread it on a 9x9-inch pan. Drop spoonfuls of the cookie dough on the brownie batter.

    Level the top with a knife and add the remaining chocolate chips. (6)Bake as directed. Cover the pan loosely with aluminum foil to avoid browning too quickly.

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

    How to serve and store

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

    You can freeze them for up to three months if wrapped properly. Let them thaw in the fridge or at room temperature.

    Slices of brookie bars on parchment paper.

    Frequently asked questions

    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 brownies including extra tips, troubleshooting, and more.

    Watch how I make it here

    Other dessert recipes you may like

    • Cheesecake Brownies from Brownie Mix
    • Oreo Brownies From Brownie Mix
    • Peanut Butter Brownies From Brownie Mix
    • Nutty Brownies From Brownie Mix
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    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 on a parchment paper

    Brookie Bars from Brownie Mix

    Brookie bars from brownie mix are a delicious mix of brownies and chocolate chip cookies. They are so easy to make and are always a hit.
    5 from 1 vote
    Print Pin Rate
    Course: Dessert
    Cuisine: American
    Prep Time: 10 minutes
    Bake Time: 25 minutes
    Total Time: 35 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 tablespoon salted or unsalted butter (43 grams) melted
    • 2 tablespoons granulated sugar (25 grams)
    • 2 tablespoon light or dark brown sugar (28 grams )
    • 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 (65 grams )
    • ¼ cup bittersweet or semisweet chocolate chips (45 grams ) divided

    Instructions

    • Combine the melted butter, granulated sugar, brown sugar, egg yolk, and vanilla extract in a bowl. Whisk together until combined.
    • Mix in the baking soda and salt.
    • Using a spatula, add the flour and mix until just combined or until no dry flour is visible.
    • Mix in 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 the cookie dough on the brownie batter.
    • Level the top with a knife and add the remaining chocolate chips.
    • Bake as directed. Cover the pan loosely with aluminum foil to avoid browning too quickly.
    • Refrigerate for at least an hour before cutting.

    Video

    Notes

    Tips for best brownies:
    • Bring the eggs to room temperature and lightly beat them to ensure they get incorporated well without overmixing.
    • Grease and line the pan with parchment paper so the brownies will not stick and come out easily.
    • Check the brownies two minutes before they should be done. Test with a toothpick — it should come out with several separate crumbs for fudgy brownies and less for cakey.
    • 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
    Tried this Recipe? Pin it for Later!Mention @recipesbynora or tag #RecipesByNora!
    « Oreo Brownies From Brownie Mix
    Cheesecake Brownies from Brownie Mix »
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