Oreo Brookies Recipe (Brownies, Cookies & Oreos)

Thick Oreo brookies showing layers of fudgy brownie, whole Oreo cookies with cream centers and chocolate chip cookie dough.

Oreo brookies recipe combines fudgy brownies, chewy chocolate chip cookies, and crunchy Oreo cookies in one irresistible dessert. As a result, every square delivers three delicious layers and plenty of chocolate flavor.

Why This Oreo Brookies Recipe Works

This Oreo brookies recipe works because the brownie batter creates a rich, fudgy base while the cookie dough adds a soft, chewy topping. In addition, Oreo cookies bring a crisp chocolate contrast. Although the dessert looks impressive, it uses simple ingredients and one baking pan.

Ingredients

Brownie Layer

1/2 cup unsalted butter, melted
1 cup granulated sugar
2 large eggs
1 teaspoon vanilla extract
1/2 cup unsweetened cocoa powder
3/4 cup all-purpose flour
1/4 teaspoon salt

Cookie Layer

1/2 cup unsalted butter, softened
1/2 cup packed brown sugar
1/4 cup granulated sugar
1 large egg yolk
1 teaspoon vanilla extract
1 cup all-purpose flour
1/2 teaspoon baking soda
1/4 teaspoon salt
1/2 cup semisweet chocolate chips

Oreo Layer

16 Oreo cookies, plus extra for topping if desired

Step-by-Step Instructions for Oreo Brookies

To begin with, preheat the oven to 350°F. Line an 8-inch square baking pan with parchment paper.
Next, whisk the melted butter, sugar, eggs, and vanilla until smooth.
Then, stir in the cocoa powder, flour, and salt until just combined.
Spread the brownie batter evenly in the prepared pan.
Arrange the Oreo cookies over the batter and press them gently into the surface.
Meanwhile, cream the softened butter, brown sugar, and granulated sugar until smooth.
Beat in the egg yolk and vanilla. Afterward, mix in the flour, baking soda, and salt.
Fold in the chocolate chips. Drop small pieces of cookie dough over the Oreos, then spread gently.
Finally, add extra crushed Oreos if desired. Bake for 35 to 42 minutes, until the top is set and the brownie layer has moist crumbs.
Cool completely in the pan. Then, chill briefly for cleaner slices before cutting.

Oreo Brookies Recipe Details

Prep Time: 20 minutes
Cook Time: 40 minutes
Total Time: 1 hour
Servings: 16 brookie squares

Pro Tips for the Best Oreo Brookies Recipe

Use room-temperature ingredients for smoother cookie dough.
Do not over mix either layer. Consequently, the brookies stay tender and chewy.
Cool the dessert fully before slicing because the center continues to set.
Flatten small pieces of cookie dough before placing them on top if spreading is difficult.
For neat edges, wipe the knife between cuts.

Storage Instructions

Store cooled Oreo brookies in an airtight container at room temperature for up to 4 days. However, you can refrigerate them for up to 7 days for a firmer texture. To freeze them, wrap individual squares tightly and freeze for up to 2 months. Thaw at room temperature before serving.

Oreo Brookies Recipe FAQ

Can I use boxed brownie mix?

Yes. Prepare the mix according to the package directions, then layer the Oreos and cookie dough as directed.

Can I use refrigerated cookie dough?

Absolutely. Break it into small pieces so it spreads evenly over the Oreos.

Why are my Oreo brookies under baked?

The center may need more time, especially when the cookie layer is thick. Bake until the top is set and the brownie portion shows moist crumbs rather than wet batter.

Can I use a 9-inch pan?

Yes, but the brookies will be thinner and may finish sooner. Begin checking them around 30 minutes.

Love this sweet treat? You have to try my Salted Caramel Brownie Bars next.