Slutty Brownies Recipe Guide: Oreo Cookie Dough and Fudgy Brownie Layers

These Slutty Brownies are the ultimate decadent dessert, featuring three irresistible layers: a chewy chocolate chip cookie base, a middle full of Oreo cookies, and a rich, fudgy brownie topping. It’s a sweet treat that’s perfect for sharing and creating memories.

I’ll always remember the rainy Saturday my sister Jennifer and I first made these. With our picnic plans washed out, we created our own sunshine in the kitchen. This happy, gooey accident of cookie dough, Oreos, and brownie batter became an instant family legend.

Why You’ll Fall in Love with These Bars

• Three Desserts in One: This recipe combines a chocolate chip cookie, Oreos, and a fudge brownie all into one decadent bar.
• Perfectly Gooey Texture: The key is to bake until the top is set but the center remains slightly soft for that irresistible gooeyness.
• Crowd-Pleasing Treat: These bars are incredibly rich and sweet, making them a guaranteed hit for parties, bake sales, or family gatherings.
• Customizable Layers: Feel free to get creative! You can swap the type of chocolate chips in the cookie dough or even use different flavored Oreos.

What You’ll Need from the Pantry

For the Brownie Layer:

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

For the Oreo Layer:

• 16 Oreo cookies

For the Cookie Dough Layer:

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

Let’s Bake Some Memories

First, A Little Prep Work

First things first, get your oven preheating to 350°F (175°C). Now, for the pan, I find an 8×8-inch baking pan gives you the perfect thickness. Go ahead and grease it, then line it with parchment paper. My little secret is to leave some paper hanging over the sides; it makes lifting the whole thing out later so much easier!

Building Our Fudgy Foundation

Now, let’s make the rich brownie layer. In a medium bowl, whisk together the melted butter and granulated sugar. Add the eggs one at a time, followed by the vanilla. Gently stir in the cocoa powder, flour, and salt until it’s all just combined. Remember, a light hand prevents a tough brownie! Pour this into your pan.

The Secret Oreo Layer

This is the fun part! Arrange the Oreo cookies in a single, even layer right on top of that brownie batter. Don’t worry if you have to break a few cookies to tuck them into the corners, it’s all part of the charm.

Crafting the Cookie Dough Crown

For our top layer, cream the softened butter with both sugars in a separate bowl until it’s light and fluffy. Beat in the egg and vanilla. In another small bowl, whisk the flour, baking soda, and salt, then gradually add this to your butter mixture. Finally, fold in those lovely chocolate chips.

The Grand Assembly

Take spoonfuls of your cookie dough and dot them all over the Oreo layer. Use your fingers or the back of a spoon to gently nudge and spread the dough until it forms a mostly even topping. A few peeks of Oreo are perfectly fine!

Baking and The Art of Patience

Pop it in the oven for 35 to 40 minutes. You’re looking for a golden-brown top, but the center should still be a little soft and gooey. Now comes the hardest part: you must let the bars cool completely in the pan. This is so important for getting those beautiful, clean slices.

A Quick Note on Nutrition

Please remember that the nutritional information provided is just an estimate. The final counts will vary depending on the exact ingredients you use in your kitchen.

For a Slightly Lighter Treat

• Ease Up on the Sugar: You can slightly reduce the granulated sugar in the brownie and cookie dough layers, and they will still be wonderfully sweet.
• A Healthier Fat: For a fudgier brownie, you can try substituting a portion of the butter with unsweetened applesauce.
• A Touch of Whole Wheat: Try swapping a small amount of the all-purpose flour for white whole wheat flour to add a little extra fiber.

My Favorite Ways to Serve Them

• Warm with Ice Cream: There’s nothing better than a slightly warmed bar with a scoop of vanilla ice cream melting over the top. It’s pure comfort.
• Drizzled with Goodness: A little drizzle of warm caramel or chocolate fudge sauce takes this dessert to a whole new level of wonderful.
• Perfect Little Party Bites: Cut them into small, one-inch squares. They look so inviting on a dessert platter and are the perfect rich treat for a crowd.

A Few Little Secrets for Success

• Don’t Overbake: The number one rule for gooey bars is to pull them from the oven when they still look a tiny bit underdone in the center. They will finish setting as they cool.
• Patience is a Virtue: I know how tempting it is, but if you cut into these while they’re warm, you’ll have a delicious mess. Wait until they are completely cool for those perfect, layered squares.
• Mix with a Gentle Hand: When you’re mixing the flour into both batters, stop as soon as you no longer see white streaks. This keeps them tender and fudgy, not tough.

Keeping Them Fresh for Later

Store your delicious bars in an airtight container on the counter for up to three days. They’ll last for about a week in the fridge. They also freeze like a dream, just wrap them individually and they’ll be ready for whenever a craving strikes!

From My Kitchen to Yours

Baking these always fills my kitchen with the most wonderful chocolate aroma and reminds me of that rainy day with my sister. It’s more than just a dessert; it’s a little piece of our history. I hope this recipe brings just as much joy and laughter into your home. May you create your own sweet memories with every gooey, chocolate-filled bite.

Your Questions, Answered with Love

Can I swap the Oreos for something else?

Absolutely! While Oreos are a classic, this would be just as delicious with peanut butter sandwich cookies or any other sturdy sandwich cookie you love. Have fun with it!

What’s the story behind that cheeky name?

The name was coined years ago by a food blogger who playfully described the recipe as “oh-so-easy and a little bit filthy.” It’s a fun, memorable name that captures how wonderfully over-the-top and indulgent these bars are.

Can I do some of the prep work in advance?

You sure can. You can make both the cookie dough and the brownie batter a day ahead. Just keep them in separate airtight containers in the fridge. I’d recommend letting the cookie dough sit out for a few minutes to soften before you try to spread it.

Slutty Brownies Recipe Guide: Oreo Cookie Dough and Fudgy Brownie Layers

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• Author: Sarah
• Total Time: 1 hour
• Yield: 16 bars 1x

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Description

These Slutty Brownies are the ultimate decadent dessert, featuring three irresistible layers: a chewy chocolate chip cookie base, a middle full of Oreo cookies, and a rich, fudgy brownie topping. Perfect for sharing, celebrations, and creating sweet memories.

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Ingredients

Scale 1x2x3x

• 1/2 cup unsalted butter, melted (for brownie layer)
• 1 cup granulated sugar (for brownie layer)
• 2 large eggs (for brownie layer)
• 1 teaspoon vanilla extract (for brownie layer)
• 1/3 cup cocoa powder (for brownie layer)
• 1/2 cup all-purpose flour (for brownie layer)
• 1/4 teaspoon salt (for brownie layer)
• 16 Oreo cookies (for Oreo layer)
• 1/2 cup unsalted butter, softened (for cookie dough layer)
• 1/2 cup brown sugar (for cookie dough layer)
• 1/4 cup granulated sugar (for cookie dough layer)
• 1 large egg (for cookie dough layer)
• 1 teaspoon vanilla extract (for cookie dough layer)
• 1 cup all-purpose flour (for cookie dough layer)
• 1/2 teaspoon baking soda (for cookie dough layer)
• 1/4 teaspoon salt (for cookie dough layer)
• 1 cup chocolate chips (for cookie dough layer)

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Instructions

1. Preheat oven to 350°F (175°C). Grease and line an 8×8-inch baking pan with parchment paper, leaving overhang for easy lifting.
2. Prepare brownie layer: whisk melted butter and sugar, add eggs one at a time, then vanilla. Stir in cocoa powder, flour, and salt until just combined. Spread in prepared pan.
3. Arrange Oreo cookies in a single layer over brownie batter, breaking a few if needed to fit corners.
4. Prepare cookie dough: cream softened butter with brown sugar and granulated sugar. Beat in egg and vanilla. In another bowl, whisk flour, baking soda, and salt. Gradually add to wet mixture. Fold in chocolate chips.
5. Spoon cookie dough over Oreos and gently spread to cover, leaving small peeks of Oreo visible if desired.
6. Bake for 35–40 minutes until golden on top but still slightly soft in the center. Let cool completely in pan before slicing.

Notes

Don’t overbake; bars should remain gooey in the center. Cool completely before cutting for neat squares. Store in an airtight container for up to 3 days at room temperature, 1 week in fridge, or freeze individually wrapped portions.

• Prep Time: 20 minutes
• Cook Time: 40 minutes
• Category: Dessert
• Method: Baking
• Cuisine: American

Nutrition

• Serving Size: 1 bar
• Calories: 320
• Sugar: 28g
• Sodium: 180mg
• Fat: 16g
• Saturated Fat: 9g
• Unsaturated Fat: 6g
• Trans Fat: 0g
• Carbohydrates: 40g
• Fiber: 2g
• Protein: 4g
• Cholesterol: 45mg

Keywords: slutty brownies, cookie dough brownies, Oreo brownies, triple layer brownies, decadent dessert