Brookies (Brownie and Chocolate Chip Cookie Bars)

Tested & Perfected Recipes

This post may contain affiliate links. Read my full disclosure policy.

Made from marbled layers of brownie batter and chocolate chip cookie dough, brookies are a fun treat for all ages.

Stack of brookies on a countertop.

Is it a brownie? Is it a cookie? Nope, it’s a brookie! Brookies are bars made from marbled layers of fudgy brownie batter and cakey chocolate chip cookie dough. When I first heard of them, I thought they were a silly fad (why mess with the classics?) but then I tried them and, boy, was I wrong. Brookies are not only super delicious, but they’re also more festive than your basic brownie recipe or chocolate chip cookies. They’re perfect for those occasions when you need a fun potluck treat for all ages —  and they’re pretty handy for packing in lunch boxes and late-night snacking, too.

“These brookies are as sinfully good as it gets!”

Jean

What You’ll Need To Make Brookies

ingredients for brookies

You’ll need two types of chocolate for this recipe: semi-sweet chocolate chips for the cookie layer and bittersweet chocolate for the brownie layer. The label on the bittersweet chocolate I use for this recipe indicates that it contains 60% cacao. Don’t get too caught up in the percentages though, because there are no legal regulations that indicate exactly how much cacao bittersweet chocolate must have. Instead, just make sure what you purchase is labeled bittersweet.

Step-by-Step Instructions

Step 1: Make the Brownie Batter

melted butter and chopped chocolate in bowl

To begin, place the butter in a medium microwave-safe bowl and melt in the microwave until bubbling. Add the chocolate and whisk until the chocolate is completely melted.

whisked melted chocolate and butter

The heat from the butter should be enough to melt the chocolate completely, but if not, place the chocolate-butter mixture in the microwave and heat for 20 seconds or so, then whisk again.

adding the sugars to the chocolate mixture

Whisk in the granulated sugar, brown sugar, vanilla, and salt. The mixture will be a bit grainy; that’s okay.

whisking in the eggs

Whisk in the eggs.

adding the flour

Finally, whisk in the flour until combined.

finished brownie batterPour the batter into the prepared pan and spread evenly with a spatula. Set aside.

brownie batter in prepared pan

Step 2: Make the Cookie Dough

butter and sugars in mixing bowl

Put the butter and both sugars in the bowl of an electric mixer (or a medium bowl if you’re using a hand mixer). Beat for 3 minutes, or until light and fluffy.

creamed butter and sugars with egg

Add the vanilla and egg and beat for 1 minute more.

mixing in salt, baking powder, and baking soda

Add the salt, baking powder, and baking soda and beat briefly until evenly combined.

mixing in flour

On low speed, mix in the flour.

adding chocolate chips

Add the chocolate chips and mix briefly to combine.

finished cookie batter

Step 3: Assemble and Bake

Dollop small spoonfuls of the cookie dough evenly over the brownie batter (no need to spread it out or press it down).

cookie batter dotted over brownie batter

Cover the pan with aluminum foil and bake for 20 minutes. Remove the foil and continue baking until the brownie edges are shiny and the cookie portion is golden brown, about 20 minutes more.

Baking pan of baked brookies.

Transfer the pan to a wire rack and cool completely. To cut, lift the brookies out of the pan using the parchment overhang and transfer them to a cutting board. Pull the parchment away from the edges and, using a sharp knife, cut the brookies into 2-inch squares.

Cut brookies on parchment paper.

Store the brookies in an airtight container on the countertop for up to three days or freeze for longer storage. Enjoy!

Stack of brookies on a countertop.

You May Also Like

Brookies (Brownie and Chocolate Chip Cookie Bars)

Made from marbled layers of brownie batter and chocolate chip cookie dough, brookies are a fun treat for all ages.

Servings: 24 Brookies

Ingredients

For the Brownie Batter

  • 1 stick (½ cup) unsalted butter
  • 4 oz bittersweet chocolate, roughly chopped (best quality, such as Ghirardelli)
  • ½ cup granulated sugar
  • ½ cup packed light brown sugar
  • 1 teaspoon vanilla extract
  • ¼ teaspoon salt
  • 2 large eggs
  • ½ cup all-purpose flour, spooned into measuring cup and leveled off with knife

For the Cookie Dough

  • 1 stick (½ cup) unsalted butter, at room temperature
  • ⅓ cup granulated sugar
  • ⅓ cup packed light brown sugar
  • ½ teaspoon vanilla extract
  • 1 large egg
  • ½ teaspoon salt
  • ½ teaspoon baking powder
  • ¼ teaspoon baking soda
  • 1¼ cups all-purpose flour, spooned into measuring cup and leveled-off with a knife
  • ½ cup semi-sweet chocolate chips

Instructions

  1. Set the rack in the middle of the oven and preheat to 350°F. Line a 13 x 9 x 2-inch pan with parchment paper (bring the parchment up the sides of pan so there is a slight overhang) and grease with butter or nonstick cooking spray. (If the parchment is slipping, dot a little butter or nonstick spray in the corners of the pan to help the parchment stick.)
  2. Make the brownie batter: Place the butter in a medium microwave-safe bowl and melt in the microwave until bubbling. Add the chocolate and whisk until the chocolate is completely melted. The heat from the butter should be enough to melt the chocolate completely, but if not, place the chocolate-butter mixture in the microwave and heat for 20 seconds or so, then whisk again. (Alternatively, combine the butter and chocolate in a heatproof bowl and set over a pan of simmering water. Stir occasionally until melted.) Whisk in the granulated sugar, brown sugar, vanilla, and salt. The mixture will be a bit grainy; that's okay. Whisk in the eggs. Finally, whisk in the flour until combined. Pour the batter into the prepared pan and spread evenly with a spatula. Set aside.
  3. Make the cookie dough: In the bowl of an electric mixer fitted with the paddle or beaters, beat the butter and both sugars for 3 minutes, or until light and fluffy. Scrape down the sides and bottom of the bowl as necessary. Add the vanilla and egg and beat for 1 minute more. Scrape down the sides of the bowl again. Add the salt, baking powder, and baking soda and beat briefly until evenly combined. On low speed, mix in the flour. Finally, add the chocolate chips and mix until just combined.
  4. Dollop small spoonfuls of the cookie dough evenly over the brownie batter (no need to spread it out or press it down). Cover the pan with aluminum foil and bake for 20 minutes. Remove the foil and continue baking until the brownie edges are shiny and the cookie portion is golden brown, about 20 minutes more. Transfer the pan to a wire rack and cool completely. To cut, lift the brookies out of the pan using the parchment overhang and transfer them to a cutting board. Pull the parchment away from the edges. Using a sharp knife, cut the brookies into 2-in squares directly on the parchment.
  5. Make-Ahead/Freezer-Friendly Instructions: Brookies can be stored in an airtight container at room temperature for up to 3 days; freeze for longer storage.

Nutrition Information

Powered by Edamam

  • Per serving (24 servings)
  • Serving size: 1 brookie
  • Calories: 206
  • Fat: 11 g
  • Saturated fat: 7 g
  • Carbohydrates: 27 g
  • Sugar: 19 g
  • Fiber: 1 g
  • Protein: 2 g
  • Sodium: 107 mg
  • Cholesterol: 43 mg

This website is written and produced for informational purposes only. I am not a certified nutritionist and the nutritional data on this site has not been evaluated or approved by a nutritionist or the Food and Drug Administration. Nutritional information is offered as a courtesy and should not be construed as a guarantee. The data is calculated through an online nutritional calculator, Edamam.com. Although I do my best to provide accurate nutritional information, these figures should be considered estimates only. Varying factors such as product types or brands purchased, natural fluctuations in fresh produce, and the way ingredients are processed change the effective nutritional information in any given recipe. Furthermore, different online calculators provide different results depending on their own nutrition fact sources and algorithms. To obtain the most accurate nutritional information in a given recipe, you should calculate the nutritional information with the actual ingredients used in your recipe, using your preferred nutrition calculator.

See more recipes:

Comments

  • Baked this as a dessert for family dinner. Everyone loved it and asked me to bake again!
    Thanks Jen, for the great recipe!

    • — Sindy Ang on August 19, 2024
    • Reply
  • I‘ve done this twice and love it. It’s definitely a recipe to keep!! The first time I brought it to a potluck where it was absolutely devoured. The second time it was even better, after reducing the butter and sugar.

    • — Sue on August 17, 2024
    • Reply
  • Hello, I made these and followed the recipe to a T, they were delish !!
    Thank you 🙂

    • — Susan on June 17, 2024
    • Reply
  • I am a brookie lover. Can I double this recipe and bake in a 9 x 13 p[an

    • — Carol on March 19, 2024
    • Reply
    • I’m concerned that if you doubled the recipe, it wouldn’t all fit in a 9 x 13-inch baking dish. If you’d like them thicker, I’d stick to 1.5 times the recipe.

      • — Jenn on March 19, 2024
      • Reply
  • Have been making them for years, can’t believe I never reviewed them. So good…… Even a couple of snooty cooks who never ask for recipes asked for this one Jenn, if I wanted a larger size bar, could I do one and a half of the recipe in the 9 x 13 pan? thanks

    • — Carol on March 15, 2024
    • Reply
    • So glad you’ve enjoyed them! Yes, I think you can get away with making 1.5 times the recipe and using the 9 x 13. The bake time will be a bit longer, but I’m not sure by how much, so keep a close eye on them. 😊

      • — Jenn on March 19, 2024
      • Reply

Add a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.