Decadent Oreo Brownie Treat

Section: Sweet Treats

These decadent brownie squares are rich with cocoa and studded with chopped Oreo chunks for a delightful texture. Starting with melted butter mixed into sugar, the batter is enriched with eggs and vanilla, then combined with cocoa powder and flour for that classic chocolate depth. Folding in chopped Oreo pieces adds a sweet crunch, while baking at a moderate temperature ensures a moist, fudgy center. For an extra touch, a light sprinkle of sea salt complements the sweetness beautifully. Store them in an airtight container to keep them fresh for days.

Sandra
Created By Sandra
Updated on Thu, 16 Oct 2025 15:34:14 GMT
A stack of Oreo Brownie Cookies. Save
A stack of Oreo Brownie Cookies. | howtogourmet.com

This Oreo brownie cookie recipe brings together the richness of fudgy brownies with the crunch and creaminess of Oreo cookies for a truly indulgent treat. Perfect for any time you crave a comforting dessert with a chocolatey punch and a playful twist.

I first made these cookies during a casual weekend gathering and was surprised how fast they disappeared. They quickly earned a permanent spot in my recipe collection for their ease and crowd-pleasing taste.

Ingredients You Need

  • Cup of butter: for that luscious, moist base. Use unsalted to control the seasoning
  • Two cups of sugar: to balance the deep cocoa notes and keep the batter sweet and tender
  • Four eggs: to bind everything while lending a bit of richness. Fresh eggs work best
  • One teaspoon of vanilla extract: for aromatic depth
  • Cup of cocoa powder: which provides intense chocolate flavor. Opt for a good quality unsweetened variety
  • Cup of all-purpose flour: as the structure builder. Sift to avoid lumps and ensure a smooth batter
  • Half teaspoon of salt: to enhance sweetness and balance flavors. A fine sea salt is ideal
  • Half teaspoon of baking powder: for a slight lift and a tender crumb
  • Cup of chopped Oreo cookies: that bring a playful texture and familiar twist. Use freshly broken pieces for the best bite

Detailed Cooking Directions

Preheat Oven and Prepare Pan:
Start by heating your oven to 350 degrees Fahrenheit or 175 degrees Celsius which ensures even baking. Grease a baking pan well to prevent sticking and to help your cookies have smooth edges.
Combine Butter and Sugar:
In a large mixing bowl, melt the butter until just liquid then immediately mix in the sugar. This step creates a rich, creamy base that helps dissolve the sugar for a silky texture.
Add Eggs and Vanilla:
Beat in the eggs one at a time along with the vanilla extract mixing thoroughly after each addition. This keeps the batter smooth and incorporates air for a light but dense cookie.
Incorporate Dry Ingredients:
Sift together cocoa powder, flour, salt, and baking powder before stirring into the wet mixture gently until just combined. Avoid overmixing as this can make the cookies tough.
Fold in Oreo Pieces:
Carefully fold in the chopped Oreo cookies ensuring they are evenly distributed without breaking down too much. These bites will add surprise crunch and creamy bits throughout.
Bake and Cool:
Pour the batter into the prepared pan and spread evenly. Bake for 25 to 30 minutes checking at 25 minutes to avoid overbaking as a slightly underdone center creates a fudgier texture. Let the cookies cool completely before cutting into squares for the cleanest slices.
A plate of Oreo Brownie Cookies.
A plate of Oreo Brownie Cookies. | howtogourmet.com

One of my favorite touches is sprinkling a tiny pinch of sea salt on top before baking. It brings out the chocolate and Oreo flavors in a wonderful way. These cookies remind me of lazy afternoons spent baking with family and sharing warm treats fresh from the oven.

Smart Storage Tips

Store the brownie cookies in an airtight container at room temperature to keep their softness and flavor intact for up to three days. For longer storage, freeze the slices separated by parchment paper and thaw at room temperature when ready to enjoy. Avoid refrigerating as it tends to dry out the texture but works well if you like your chocolate extra firm.

Ingredient Variations

Swap Oreos for any sandwich cookies like peanut butter or mint for a unique twist. Add chopped nuts such as walnuts or pecans for extra crunch and a nutty flavor contrast. Mix in mini chocolate chips or white chocolate chunks for more decadent chocolate layers.

Perfect Pairing Ideas

Serve with a scoop of vanilla ice cream for a classic combination of warm and cold delights. A glass of cold milk is a simple and timeless pairing that balances the richness of the cookies. For adults, try a cup of strong black coffee or espresso which cuts through the sweetness beautifully.

The image and the text is: No.
The image and the text is: No. | howtogourmet.com

These Oreo brownie cookies perfectly blend nostalgic flavors with rich chocolate indulgence. Baking them always feels like a small celebration and makes any day feel a bit sweeter.

Frequently Asked Questions

→ What type of cocoa powder works best?

Use unsweetened cocoa powder for a deep chocolate flavor that balances the sweetness from the sugar and Oreos.

→ Can I substitute the Oreos with other cookies?

Yes, feel free to use chocolate chip cookies or any crunchy cookie for a different texture and flavor.

→ How do I achieve fudgier brownies?

Underbake the squares slightly by a few minutes; they will set more as they cool, retaining a gooey interior.

→ Is there a way to enhance the chocolate flavor?

Adding a pinch of espresso powder to the batter can intensify the chocolate notes without altering sweetness.

→ How should these be stored for freshness?

Keep the baked squares in an airtight container at room temperature for up to three days to preserve texture and flavor.

Decadent Oreo Brownie Treat

Rich chocolate brownie squares filled with crunchy Oreo pieces for a perfect indulgent bite.

Preparation Time
15 minutes
Time to Cook
30 minutes
Overall Time
45 minutes
Created By: Sandra

Type of Recipe: Sweet Treats

Difficulty Rating: Simple for Beginners

Cuisine Style: American

Yield: 16 Number of Servings (16 cookies)

Dietary Options: Suitable for Vegetarians

Ingredients Required

→ Dairy and Fats

01 227 grams unsalted butter

→ Sweeteners

02 400 grams granulated sugar

→ Eggs and Flavorings

03 4 large eggs
04 5 milliliters vanilla extract

→ Dry Ingredients

05 100 grams unsweetened cocoa powder
06 120 grams all-purpose flour
07 2.5 milliliters salt
08 2.5 milliliters baking powder

→ Add-ins

09 160 grams chopped Oreo cookies

Detailed Directions

Instruction Step 01

Set the oven temperature to 175°C and prepare for baking.

Instruction Step 02

Lightly grease the baking pan to prevent sticking.

Instruction Step 03

Melt the butter and combine it thoroughly with the granulated sugar.

Instruction Step 04

Add the eggs and vanilla extract to the mixture, stirring until homogeneous.

Instruction Step 05

Sift in cocoa powder, all-purpose flour, salt, and baking powder; fold gently until just combined.

Instruction Step 06

Gently fold the chopped Oreo cookies into the batter evenly.

Instruction Step 07

Pour the prepared batter into the greased baking pan, smoothing the surface.

Instruction Step 08

Bake for 25 to 30 minutes until a toothpick inserted near the center comes out with moist crumbs.

Instruction Step 09

Allow to cool completely before slicing into 16 squares for serving.

Helpful Advice

  1. For fudgier texture, remove from oven slightly before fully set. Optionally, sprinkle sea salt on top for balance. Store airtight at room temperature for up to three days.

Equipment Needed

  • Oven
  • Mixing bowls
  • Baking pan
  • Measuring spoons and cups
  • Spatula

Allergen Info

Review ingredient labels for allergens and talk to a doctor if unsure.
  • Contains dairy, eggs, gluten, and wheat

Nutrition Information (Per Serving)

Use these nutrition facts as a guide only. Always check with a healthcare expert.
  • Calorie Count: 250
  • Fat Content: 12 grams
  • Carbohydrate Amount: 35 grams
  • Protein Content: 3 grams