Oreo Brownies are rich, fudgy, and studded with melty chocolate chips and Oreo pieces in every decadent bite. Easy to make, they require minimal prep time, and are ready in under an hour! 

Oreo brownie squares.

The Ultimate Oreo Brownie Experience

Oreo Brownies might be the greatest mashup of all time. A chocolate lover’s dream, they’re the definition of decadence and are impossible to resist! 

Topped with pieces of Oreo cookies, they look like they came from a local bakery. However, they’re so easy they’re virtually failproof. 

Whip up a batch for bake sales, holiday parties, birthday celebrations, or a mid-week treat! 

A baking dish full of brownies with Oreos on top.

Ingredients You Need

Below is an overview of the ingredients and instructions to make this recipe. Be sure to scroll down to the recipe card for the complete details and nutrition information! 

  • Butter – We recommend using unsalted butter for baking! 
  • Sugar – Regular granulated sugar helps sweeten the batter. 
  • Eggs – These enhance the fudgy consistency and add structure to the brownies, helping them keep their shape. 
  • Cocoa Powder – Make sure to use unsweetened cocoa powder. We recommend Dutch processed. 
  • Flour – All-purpose flour forms the base of the batter. However, if needed you can substitute a 1:1 gluten-free all-purpose flour instead. 
  • Cornstarch – This creates a thick texture and contributes to the crinkly top. 
  • Baking Soda – Make sure it’s fresh! Otherwise, your brownies won’t rise. 
  • Chocolate – We use a semi-sweet chocolate bar cut into chunks to infuse every bite with chocolate goodness. 
  • Oreos – Break regular Oreo cookies into pieces, and sprinkle them evenly across the top. 
Oreo brownies.

Combine Two Desserts in One with This Oreo Brownie Recipe

Before you begin, preheat your oven, and line the bottom of a square baking dish. Grease it with parchment paper, and set it aside. 

Note: We use a 9×9 baking dish to create thick, gooey brownies. However, if you prefer thinner, more crisp brownies, use a 13×9 baking dish. Reduce the baking time as needed. 

  1. Combine the wet ingredients. Add the melted butter and sugar to a large bowl, and beat until smooth. Then, add the eggs and vanilla, and whisk to combine. 
  2. Add the dry ingredients. Stir in the cocoa powder just until smooth. Then, use a rubber spatula to stir in the flour, cornstarch, baking soda, and salt just until no clumps remain. Fold in the chocolate chunks. 
  3. Transfer the batter. Pour the brownie batter into the prepared baking dish, spreading it out evenly. Then, sprinkle the Oreo pieces on top. 
  4. Bake. Transfer the baking dish to the preheated oven, and bake until a toothpick can be inserted into the center and comes out clean. 
  5. Cool. Allow the brownies to cool in the pan slightly. Then, slice and serve! 
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Flavor Variations

Feel free to mix and match different ingredients and toppings to make this brownies with Oreos recipe your own! Some fabulous variations include: 

  • Using Golden Oreos or your favorite flavor in place of chocolate.
  • Opting for Double Stuffed Oreos for an even more indulgent treat. 
  • Mixing in chopped nuts like almonds or pecans. 
  • Swapping the chocolate bar with semi-sweet or white chocolate chips
  • Swirling chocolate sauce or caramel sauce into the batter. 
  • Adding frosting on top. 
A large Oreo brownie square.

How to Store 

Store unsliced brownies in an airtight container at room temperature for up to four days. Or, store sliced brownies for one to two days. 

Freeze sliced brownies for up to two months. Place a sheet of parchment paper in between each layer to prevent them from clumping together! 

More Brownie Recipes

Oreo Brownies

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Author: Food Dolls
Servings: 12 servings
Prep: 5 minutes
Cook: 40 minutes
Total: 45 minutes
Make this fudgy Oreo brownies recipe for thick, chewy brownies studded with chocolate and Oreos to satisfy all your sweet tooth cravings!

Ingredients  

  • 1 cup unsalted butter melted
  • 1 3/4 cups granulated sugar
  • 4 large eggs
  • 2 teaspoons vanilla extract
  • 1 cup unsweetened cocoa powder
  • 1 cup all-purpose flour
  • 4 teaspoons cornstarch
  • 1/2 teaspoon baking soda
  • 3/4 teaspoon sea salt
  • 1 8 ounce semi-sweet chocolate bar, cut into chunks
  • 1 cup Oreo cookie chunks

Instructions 

  • Preheat the oven to 325 degrees Fahrenheit. In a bottom of a 9×9 baking dish, and parchment paper and grease. set aside. (these cookies are very thick and gooey, this can be made in a 13×9 baking dish if you prefer thinner brownies, baking time will have to be reduced)
  • In a large bowl, beat the melted butter and sugar until smooth. Add the eggs and vanilla, and whisk to combine. Stir in the cocoa powder, mixing just until smooth.
    1 cup unsalted butter melted, 1 3/4 cups granulated sugar, 4 large eggs, 2 teaspoons vanilla extract, 1 cup unsweetened cocoa powder
  • Using a rubber spatula, stir in the flour, cornstarch, baking soda, and salt just until combined and no clumps remain. Gently fold in the chocolate chunks
    1 cup all-purpose flour, 4 teaspoons cornstarch, 1/2 teaspoon baking soda, 3/4 teaspoon sea salt, 1 8 ounce semi-sweet chocolate bar, cut into chunks
  • Pour the batter into the prepared baking dish, spreading it out evenly. Top with Oreo cookie chunks.
    1 cup Oreo cookie chunks
  • Bake 35-40 minutes or until the batter is set and a cake tester can be inserted into the center and removed with just a few moist crumbs attached. Be careful not to overcook!
  • Set aside to cool completely.
  • Store unsliced in an airtight container at room temperature for up to 4 days or sliced for 1-2 days.

Nutrition

Serving: 1serving | Calories: 499kcal | Carbohydrates: 61g | Protein: 6g | Fat: 28g | Saturated Fat: 16g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 8g | Trans Fat: 1g | Cholesterol: 96mg | Sodium: 389mg | Potassium: 285mg | Fiber: 5g | Sugar: 42g | Vitamin A: 562IU | Calcium: 38mg | Iron: 5mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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Food Dolls

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Meet Alia & Radwa

Welcome to Food Dolls! We’re so glad you found us. We are Alia and Radwa, sisters who want to share simple and easy recipes with you. We hope you find recipes here that you enjoy making as much as we do! Learn more about us!

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