Oreo Brownie Cookies

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These Oreo Brownie Cookies are over-the-top delicious and sinful, and will surely knock your socks off. Otherwise known as slutty brownies, these gems start with a cookie dough base followed by a layer of Oreo cookies, and then a brownie top. Finish them off with some mini Oreos and a sprinkle of kosher salt for good measure!

For other bar-type sweets, try my Chocolate Peanut Butter Blondies, the best S’mores Cookie Bars, or some Frosted Sugar Cookie Bars.

Side view of a plate of Oreo cookie brownies with a jar of milk.

Slutty Brownies

Say what? While I didn’t invent the name of this popular dessert, I’m understanding it better after making them several times. The original recipe was made using refrigerated cookie dough and boxed brownie mix, so yes – easy. They are also indeed a bit sinful. You’ll see why after you have a few bites!

You can indeed call these Oreo Brownie Cookies per my title, especially if you’re serving little ones and/or your mom. 🙂

I’m a sucker for a square pan of treats. Just enough to eat some, share some, or freeze some. Not too much and not too little.

Three Parts to these Layered Bars

  • Cookie Dough Base – I used my Super Soft Chocolate Chip Cookies and cut it down for this recipe.
  • Oreo Cookies – A layer of regular Oreo cookies goes on top of the cookie dough. You can fill in the gaps with broken up Oreos if desired.
  • Brownie Top – I also edited my super delicious Triple Chocolate Brownies and used that for the top layer.
  • Toppers (if desired) – When the bars are out of the oven cooling, carefully press a mini Oreo cookie on top of each brownie. I lightly cut the tops so I can see how I’m going to slice them and therefore, I know how to arrange the mini Oreo. A sprinkle of kosher salt (or sea salt) is always a nice finish as well.
A plate of Oreo cookie brownies, with a jar of milk.

How to make Oreo Brownie Cookies

Step 1
Make the cookie dough. Use a hand mixer to cream together the softened butter and both sugars. Add the egg and vanilla – and mix again. Then add the flour, baking soda, kosher salt, and cornstarch – and mix again. Stir in the chocolate chips.

Step 2
Make the brownie batter. Place butter and chopped chocolate in a mixing bowl. Microwave on 50% power in 30 second increments until the chocolate is melted. Add both sugars and vanilla and stir well. Then add the flour, cocoa powder, and salt. Mix again. Finally, stir in the chocolate chips.

Step 3
Prep for baking. Preheat the oven to 350 degrees. Add some parchment paper to an 8×8 inch pan. (You’ll use the parchment paper to lift the brownies out of the pan.)

Step 4
Assemble cookies. Drop some cookie dough by tablespoons on the bottom of the pan. Use a spoon (or your hands) to spread it to all sides of the pan. Add the Oreo cookies on top of the cookie dough. (You can also add some broken up Oreos to the gaps.) Then spoon the brownie batter on top of the cookies, spreading it evenly to all sides of the pan.

Step 5
Bake cookies. Bake the Oreo Brownie Cookies for 35-40 minutes, or until firm in the center.

Step 6
Let cool. Remove the pan from the oven and sprinkle a bit of kosher salt on top. After about 15-20 minutes, push some mini Oreo cookies on the top of the brownie layer (one in each cookie).

These bars will come out much nicer if you wait a couple of hours to remove them from the pan. Let them fully cool, remove the brownies with the parchment paper, and slice.

Use a sharp knife to cut these Oreo brownie cookies, especially if you leave them fully cool. That way you’ll get a nice clean cut and those layers will shine. Impressive, right?

Overhead shot of sliced brownie cookies.

Recipe FAQs

Can I use store bought dough and boxed brownies?

Just like the original recipe states, you can make these EASY by buying cookie dough in the refrigerator section of the grocery store and buying a boxed brownie mix. However, I believe homemade is ALWAYS better!

What size of pan should I use?

I love my USA pans and I used my 8×8 pan for this recipe. It’s linked below – right above the recipe card.

Can I used double stuffed Oreos?

You CAN use double stuffed or regular Oreos (like this recipe uses).

What if I slice these before they cool?

I did that, and believe me – they are just as delicious. HOWEVER, the layers will run and you won’t be able to see each one like these pictures show. I recommend letting them fully cool in the pan before removing and slicing.

What size of pan should I use if I want to double the recipe?

I recommend using TWO 8×8 pans if you double it. Using a 9×13 pan will require a longer baking time and the brownies might get dry.

Storing and Freezing

  • STORE these on your counter for up to three days, in an airtight container.
  • You can FREEZE these bars for up to three months, in a freezer safe container or freezer bags.
My hand holding up a Oreo brownie cookie.

Oreo cookies make everything taste better, don’t you think? That’s why you should definitely make my White Chocolate Oreo Truffles, some Easy Oreo Ice Cream Pie, and the best Cookies and Cream Ice Cream!

For another delicious brownie recipe, make sure you try my Texas Sheet Cake Brownies. It’s the recipe I made for the kids birthday parties all through the years, and it’s still one of our favorites!

One final note. As you can see, naming these was difficult. But you can call them cookies, brownies, bars, brownie cookies, cookie brownies, Oreo brownie cookies, Oreo cookie brownies, or hmmmm….Slutty Brownies works too! ENJOY!

Side view of two brownie cookies.

Kitchen Tools Used: (affiliate links)

xoxo ~Sue

Side view of a plate of Oreo Brownie Cookies.

Oreo Brownie Cookies

These Oreo Brownie Cookies are over-the-top delicious and sinful, and will surely knock your socks off. Otherwise known as slutty brownies, these gems start with a cookie dough base followed by a layer of Oreo cookies, and then a brownie top. Finish them off with some mini Oreos and a sprinkle of kosher salt for good measure!
5 from 1 vote
Print Pin Rate
Course: Dessert
Cuisine: American
Servings: 12 bars
Calories: 501kcal
Author: Sue Ringsdorf

Ingredients

For the cookies:

  • 1/2 cup unsalted butter – softened to room temp
  • 1/4 cup granulated sugar
  • 1/2 cup brown sugar
  • 1 large egg
  • 2 teaspoons vanilla extract
  • 1 cup all-purpose flour
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon kosher salt
  • 1/2 teaspoon cornstarch
  • 1/2 cup semi-sweet chocolate chips

For the brownies:

  • 1/2 cup unsalted butter – melted
  • 2 oz. semisweet chocolate bar – chopped
  • 1/3 cup granulated sugar
  • 1/3 cup brown sugar
  • 2 large eggs – at room temp
  • 1 teaspoon vanilla extract
  • 1/2 cup all-purpose flour
  • 3 Tablespoons unsweetened cocoa powder
  • 1/4 teaspoon kosher salt
  • 1/2 cup semi-sweet chocolate chips

Oreo layer:

  • 16 Oreo cookies
  • mini Oreo cookies – for topping (optional)

Instructions

Make the cookie dough.

  • In a mixing bowl, use a hand mixer to cream the softened butter and sugars together. Then add the egg and vanilla and mix again.
  • Add the flour, baking soda, kosher salt, and cornstarch – and mix again. Finally, add the chocolate chips and stir to combine.

Make the brownie batter.

  • In a mixing bowl, combine the butter and chopped chocolate. Place in microwave and cook on medium power (in 30 second increments) until the chocolate is melted. Then add both sugars, eggs, and vanilla.
  • Add flour, cocoa powder, and salt – and mix again. Finally stir in the chocolate chips.

Assemble the brownies.

  • Prepare an 8×8 pan with parchment paper (so you can use them as handles to remove brownies).
  • Drop the cookie dough by tablespoons on parchment paper so that it is evenly distributed. Use a spoon to spread to all sides of pan.
  • Arrange Oreo cookies on top of the cookie dough. You should be able to add 16 cookies. You can also add some crumbled Oreos to the gaps, if desired.
  • Then spoon the brownie batter evenly over top the Oreo cookie layer, and spread to all sides of the pan.

Bake cookies.

  • Bake the brownie cookies in a 350 degree preheated oven for 35-40 minutes, or until the brownies are set and firm in the center.
  • OPTIONAL: After about 15 minutes, push some mini Oreo cookies into the top of the brownies (one in each brownie). I used a sharp knife to draw where I would cut after they fully cool. Just don't cut yet!
  • Remove pan and let the brownies FULLY COOL inside the pan.
  • Slice and enjoy!

Notes

Just like the original recipe states, you can make these EASY by buying cookie dough in the refrigerator section of the grocery store and buying a boxed brownie mix. However, I believe homemade is ALWAYS better!
These bars will come out much nicer if you wait a couple of hours to remove them from the pan. Let them fully cool, remove the brownies with the parchment paper, and slice.

Nutrition

Calories: 501kcal | Carbohydrates: 59g | Protein: 6g | Fat: 28g | Saturated Fat: 16g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 8g | Trans Fat: 1g | Cholesterol: 88mg | Sodium: 291mg | Potassium: 226mg | Fiber: 3g | Sugar: 39g | Vitamin A: 550IU | Calcium: 44mg | Iron: 4mg
Tried this recipe?Mention @Suebeehomemaker or tag #suebeehomemaker!

2 Comments

  1. Pretty much impossible to mess this up. Oreo. Brownie. Cookie. I was in at Oreo!

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