Brookies (Brownie and Chocolate Chip Cookie Bars)
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Made from marbled layers of brownie batter and chocolate chip cookie dough, brookies are a fun treat for all ages.
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.
Table of Contents
“These brookies are as sinfully good as it gets!”
What You’ll Need To Make 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
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.
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.
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.
Step 2: Make the Cookie Dough
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.
Add the vanilla and egg and beat for 1 minute more.
Add the salt, baking powder, and baking soda and beat briefly until evenly combined.
On low speed, mix in the flour.
Add the chocolate chips and mix briefly to combine.
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).
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 and, using a sharp knife, cut the brookies into 2-inch squares.
Store the brookies in an airtight container on the countertop for up to three days or freeze for longer storage. Enjoy!
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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.
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
- 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.)
- 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.
- 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.
- 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.
- 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
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- 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.
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Tried it this morning and oh my it tastes so good!! I don’t live in the states so I guess we have different sugar, cut the sugar to half of what’s written in the recipe and the sweetness is just how I like it.
My husband doesn’t like sweets but he already had 2 pcs. Will bake it again for sure!
These are delicious. Great combo of crunchy exterior and chewy interior. I did find I needed to bake them a bit longer, but I don’t have a commercial range.
Jen, My mother made a very similar type of these, but no brownie on the bottom, they were like the cookie dough part of the way thru, with chocolate chips throughout, then she put meringue on top and browned till it was set and firm, (in the oven). Have you ever run across this type of chocolate chip bar? They look so similar. She is no longer with us so I don’t have the recipe. Douglas
Hi Douglas, those sound yummy but I can’t say I’ve come across a recipe that fits that description. If I happen to come across something like this, I’ll send it your way!
Douglas, your description sounds like they were Mud Hen bars!
I made your Brookies yesterday and though they taste amazing, I found that they did not look like two layers. The chocolate layer took over and only 1/10th of the mixture was tan color. I used a Lindt chocolate in the brownie batter so maybe that was the problem. Have you every experienced this? When they came out of the oven, they looked like brownies and the top was all brown.
I haven’t, Squirl…that is strange! Can you send me a photo at jennifer@onceuponachef.com?
Amazing dessert!! I was short on time so I used a box brownie mix (mixed as directed and then per your recipe just spread it in the pan). Came out perfectly and I’ll try it with your homemade brownie recipe next time for sure. These are definitely going to be my go-to when I bring something to someone’s home. Thank you!
I have just made these for the first time…I cannot wait for these to cool down to try. They look and smell amazing. I also seemed to have too much cookie dough so I ended up with two desserts. thanks for the recipe
In addition to the above they have now been tasted the brownie was slightly under baked but firmed up in the fridge so are really fudgy. I will probably bake under the foil an extra 5-10 minutes next time
Hi Jen! I love all your recipes and can’t wait to try this one. I only have semi sweet chocolate, not bitter sweet.Can I use that instead for both the brownie and the cookie? Should I cut down on something else? Thanks!
Hi Giselle, They are pretty much interchangeable, so that’s fine — no need to change anything else. Enjoy!
Made these brookies over the weekend to be a gift – I was curious, but I didn’t think I would like the flavors together, so I figured they would make a nice plate and I could sample. Oh, my! Absolutely delicious. A perfect combination of tender, chocolaty brownie and just the right proportion of cookie to brownie. I did manage to limit my sampling, but the brookie is now in my rotation. Came together quickly and easily.
Hello! I love your recipes and can’t wait to try these. My question is can I add some walnuts to the mixtures? I love nuts in brownies and cookies. 🙂 Thank you!
Sure – hope you enjoy!
Why not,,,pecans are better
This was a hit! I baked for 20 minutes + 20 minutes + 10 minutes and checked visual cues, but the brownie part was still runny enough that the pieces aren’t holding together that great. Thanks!
Hi Hanna, Sorry you had a problem with the brownie layer. This recipe is pretty predictable — is there any chance you could’ve made a measuring error?
Jen,
Do you think 60% cocoa Ghirardelli bittersweet baking chips would work in place if the chocolate bar?
Thanks
Hi Janelle, Chocolate chips have a stabilizer in them to help retain their shape when heated — that makes them not ideal for a recipe like this. Sorry!
Hi Jenn, I have a package of unsweetened chocolate. Do you think that could work in place of the bittersweet?
Hi Jane, It will work but the brownie part won’t be as sweet.