Oreo Brookie

This Oreo Brookie is part fudge brownie, part chocolate chip cookie, loaded with Oreos, and made in a large baking dish to serve a crowd.

This recipe does require you to make two separate batters. However, it’s enough to fill a large 9x13 baking dish. That way you’ll have plenty of dessert for all of your efforts. I've included step-by-step photos and instructions along with tips and tricks to make sure that it comes out just right.

Jump to:

• Why You'll Love This Recipe:
• What is a Brookie?
• Oreos and Brookies
• Brownie: Choosing High-Quality Chocolate
• Chocolate Chip Cookie: Choosing Chocolate Chips
• Oreo Brookies: Making Two Batters
• 9x13 Aluminum Baking Dish
• Substitutions and Variations:
• Ingredients:
• How to Make Oreo Brookies
• How To Store and Freeze:
• If you're looking for other dessert recipes, you may love these:
• Oreo Brookie

What is a Brookie?

A Brookie is a dessert bar that is part Brownie and part Cookie. It typically uses chocolate chip cookie dough, but other cookies work too, like peanut butter cookies. You may also sometimes see it referred to as "slutty brownies".

A Brookie can be made in a few different ways:

• Two layers: brownie on the bottom and cookie on top
• Swirled brownie and cookie
• Gobs of each left to melt and bake into each other (like this recipe)

Oreos and Brookies

Oreos are a great complement to brookies. They work seamlessly in brownies and chocolate chip cookies. Oreos mixed into either one on its own would make for a great dessert. Combine them all together and it's one intensely yummy treat.

The recipe calls for 1 row of Oreos in a family-sized pack (or 15 Oreos) that are mixed into the brownie batter. After both the brownie batter and cookie dough have been added to the baking dish, toss several additional Oreos on top. If you’re serving to kids you may want to ensure that there are enough “sprinkled” Oreos on top so that each kid gets one in their Oreo Brookie bar.

I also love to use Oreos in this Oreo Pizookie Recipe or these Oreo Cheesecake Brownies.

Brownie: Choosing High-Quality Chocolate

Choosing high-quality chocolate for the brownie part of these Oreo Brookies makes all the difference. You will have a totally different brownie if you use high-quality milk chocolate and cocoa powder rather than store-brand or lower-quality chocolate. Higher-quality milk chocolate will melt better in the microwave (or on the stove) compared with lower-quality chocolate. It also just tastes infinitely better. I recommend either Ghirardelli or Guittard. They are readily accessible at large grocery stores, Target, or Whole Foods.

The same is true with the cocoa powder. Choose a higher quality brand such as Guittard or Ghirardelli. This can sometimes be harder to find than high-quality chocolate chips, but I have seen it at Target, Whole Foods, and Amazon.

Chocolate Chip Cookie: Choosing Chocolate Chips

Most types of chocolate will work well in the chocolate chip cookie part of the brookie. I tend towards bittersweet which is pretty traditional, but if you have extra milk chocolate chips from the brownie part of the batter, then feel free to use those. Also, other brands like Nestle will work here. You don’t need higher quality chocolate from brands like Ghirardelli or Guittard for the chocolate chip cookie part.

Oreo Brookies: Making Two Batters

Because this Oreo Brookie recipe is half brownie and half chocolate chip cookies, it requires that you make two batters. Since that will take longer than making just one batter, I ensure that the proportions are larger and you will get a full 9x13 baking dish worth of Oreo Brookie bars for your efforts.

I make the Oreo brownie batter first, then the cookie dough, each in a separate bowl. Then I add scoops of cookie dough first to the 9x13 dish, then Oreo brownie batter around the cookie dough. If you would prefer to use only one bowl, or if you only have 1 large bowl, feel free to make either batter first. Add the batter in scoops to the baking dish, wash the bowl, and repeat with the second batter/dough.

9x13 Aluminum Baking Dish

I make these brownies in a 9x13 aluminum baking dish. If you plan to eat them at home with your family, I find it easier to just butter and flour the dish. However, if you’re looking to pack them up and bring them somewhere, I’d recommend lining the dish with parchment paper, then butter and flour the dish. It makes it easier to remove the brownies cleanly and cut evenly sized pieces.

If using a glass or ceramic dish you may have to adjust the baking time. Also, keep in mind that all ovens vary in terms of how hot they run. You may want to check the Oreo Brookies before the 30-35 minute mark to see how yours are doing.

Substitutions and Variations:

• Chocolate Chips: You can use any variety of chocolate chips in either batter. I prefer milk chocolate chips in the brownie batter because otherwise, the flavors can get too intense, but really anything will work such as bittersweet, semi-sweet, or dark chocolate.
• Oreos: You can use any variety of Oreos like Double Stuffed or even Golden Oreos.
• Variations: These Brookies can also be made with other mixins like marshmallows, heath bars, or nuts (pecans, walnuts).
• To Serve: Serve these brookies on their own or with a scoop of ice cream.

Ingredients:

Below are the ingredients needed to make the Brownie Layer of the Oreo Bookies.

• Milk Chocolate Chips: Use high-quality milk chocolate chips from a brand such as Ghirardelli or Guittard. They melt better and taste better.
• Butter: The butter in this portion of the recipe is melted.
• Sugar: Adds sweetness.
• Eggs and Egg Yolk: The extra egg yolk adds richness.
• Cocoa Powder: Use high-quality cocoa powder.
• Flour: Use all-purpose, unbleached flour.
• Vanilla Extract: Use real vanilla extract. If you bake somewhat regularly consider buying a large bottle at Costco, which will last you at least a year if not two years.
• Salt: Brings out flavor.
• Oreos: I use regular Oreos, but use any type of Oreos that you like including Double Stuffed Oreos.

Below are the ingredients needed to make the Chocolate Chip Cookie Layer of the Oreo Brookies.

• Butter: Use softened butter. If you have not softened your butter ahead of time, place it in your large microwavable mixing bowl and microwave at 20% power for 30 seconds at a time until softened.
• Brown Sugar: Adds a little more flavor and color than granulated sugar.
• Granulated Sugar: For sweetness.
• Egg: Use large eggs, pasture-raised if possible.
• Vanilla Extract: Use real vanilla extract.
• Baking Soda: Check to make sure it has not expired.
• Salt: Brings out flavor.
• Flour: Use all-purpose, unbleached flour.
• Bittersweet Chocolate Chips: These can easily be substituted for milk chocolate chips, or whatever variety that you already have on hand.

See the recipe card for full information on ingredients and quantities.

How to Make Oreo Brookies

Below are the step-by-step instructions and photos for making Oreo Brookies.

Make the Oreo Brownie Batter:

Step 1. Preheat the oven to 350℉. Butter and flour a 9x13 aluminum baking dish, or butter, and line with parchment paper.

In a large microwavable mixing bowl add the butter and milk chocolate chips. Microwave at 50% power for 1 minute adding 30 seconds (also at 50% power) as needed until the butter has melted and the chocolate is soft enough that it can be stirred into the melted butter.

Step 2. Add the granulated sugar and combine. Then add the eggs and the extra egg yolk and combine.

Step 3. Add the cocoa powder, flour, vanilla extract, and salt, and combine.

Step 4. Break the Oreos into smaller pieces, roughly into quarters and add to the batter. Stir gently to combine.

Make the Chocolate Chip Cookie Dough:

Step 5. In a separate large mixing bowl add the softened butter and brown sugar and combine.

Step 6. Add the egg, vanilla extract, baking soda, and salt and combine. Add the flour and combine.

Step 7. Add the chocolate chips and stir gently to combine.

Step 8. Using a cookie scoop, add 2 tablespoon drops of the cookie dough to the prepared 9x13 baking dish. Fill in any remaining gaps with 2 tablespoon drops of the brownie batter.

Step 9. Add additional Oreos on top. Bake at 350℉ for 35 minutes.

To cut clean slices, allow the brookies to cool before cutting and serving.

How To Store and Freeze:

To Store: Place in an airtight container on the counter for up to 3 days or in the fridge for up to a week.

To Freeze: Store in an airtight freezer bag, removing as much air as possible and place in the freezer for up to 3 months.

If you're looking for other dessert recipes, you may love these:

Double Chocolate Fudge Brownies: made with high quality milk chocolate and cocoa powder. Ultra chocolatey and easy to put together.

Biscoff Blondies: Blondies made with Biscoff cookie spread in the batter and swirled on top.

Simple Flourless Chocolate Cake: Made with melted chocolate chips and cocoa powder, does not require any flour and only takes a few minutes of prep. Great for date night at home or having friends over.

Oreo Brownie Cheesecake: A layer of fudge brownies topped with a layer of creamy cheesecake with Oreos throughout.

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