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Slutty Brownies are the most decadent and outrageous bar cookie you’ll ever try: chocolate chip cookies on the bottom, brownies on the top, and Oreos in the center. Normally this recipe is made with pre-packaged dough and box mixes but my recipe is completely from scratch. Almost every blogger has made some version of this recipe but if you’re looking for the BEST Slutty Brownie recipe, this is it!

stack of brookies with oreos inside


Why I Love This Recipe

Okay let’s just put it out there that I’m not in love with the name of these brownies. It’s a little awkward to call them slutty when really, they’re just outrageous and amazing. (Slutty isn’t really a word I like to use, anyway.)

However, people DO search for them and since I’ve been making them for years I figured I needed to finally post the recipe. I couldn’t call them Brookies (although basically, that’s what they are) because I already have a recipe for those.

Let’s just agree the name isn’t great but the bars ARE. From scratch chocolate chip cookies on the bottom, Oreos in the center, and homemade brownies on top – these are EPIC!

ingredients on counter with words on photo

Ingredients Needed

  • Butter: I always use unsalted butter, but salted may be substituted by reducing added salt. I use melted butter in both layers.
  • Sugars: You need both granulated sugar and brown sugar.
  • Baking Chocolate: For the brownies you’ll need unsweetened baking chocolate, which is found in the baking aisle.
  • Cocoa: I use regular unsweetened cocoa powder, but dutch process may also be used.
  • Oreos: You’ll need about 24 Oreos or similar sandwich cookie for that layer.

Variations

Step-by-Step Instructions

cookie mixture with egg and baking soda.

1. Melt butter and stir in both sugars in a large bowl. You don’t need to use an electric mixer, but you can. Stir in egg, baking soda, salt, and vanilla extract.

cookie dough in bowl.

2. Stir in flour then stir in chocolate chips. At this point, you’ll press the dough into the bottom of a 9×13-inch baking dish.

process shot of M&M brownies.

3. Melt baking chocolate and butter until smooth. Make sure to use a large bowl that is microwave safe, and stir every 30 seconds while melting.

process shot of M&M brownies.

4. Stir in the sugar, cocoa, salt, and eggs until smooth. No mixer needed unless you want to use one! Then stir in the flour.

cookie dough in pan topped with Oreos.

5. Layer the Oreos evenly over the cookie dough in the pan.

brownie batter in pan.

6. Carefully spread the brownie batter over the top of the Oreos. Then bake until the brownies are no longer glossy on top.

stack of brookies with oreos inside

Expert Tips

  • You’re going to want a 9×13-inch pan for this recipe.
  • You can also make these in muffin tins if you want Oreo Cookie Brownie Cupcakes!
  • I like to cover the pan with foil and spray with nonstick cooking spray to make removal and slicing easier.
  • These take quite a long time to bake because they’re so thick. You know brownies are done when the top is solid and no longer wet looking. The toothpick test can be done 2 inches from the edge, but it’s best to use your eyes for this.
  • Cool completely before slicing.
  • Store in an airtight container on the counter, or in the freezer for up to 3 months. Learn how I freeze all my desserts!

FAQs

Why are they called Slutty brownies?

This recipe originated with a blogger who called them something different, then another blogger made them and re-named them for shock value – and they went viral. Let’s make Chocolate Chip Cookie Oreo Brownies trend so we can skip the bad name of them!

Can you freeze brownies?

Freeze these in an airtight container for up to 3 months.

Can I use store bought ingredients?

Feel free to swap out refrigerated cookie dough (one log) and/or one box brownie mix (plus the ingredients to make the brownies). But I love this from scratch version best!

stack of brookies with oreos inside

BEST Slutty Brownie Recipe

4.65 from 54 votes
Make SLUTTY BROWNIES from scratch! This easy brookie recipe is a chocolate chip cookie bar with brownies on top and Oreos stuffed inside. Learn how to make slutty brownies without a mix – and different variations you can make too!
Prep Time 20 minutes
Cook Time 35 minutes
Total Time 55 minutes
Yield 24 bars
Serving Size 1 serving

Ingredients
 

For the Cookies:

  • ½ cup (113g) unsalted butter melted
  • cup (57g) granulated sugar
  • ½ cup (100g) light brown sugar packed
  • 1 large egg
  • 1 teaspoon vanilla extract
  • ½ teaspoon baking soda
  • ½ teaspoon salt
  • 1 ½ cups (186g) all-purpose flour
  • 1 ½ cups (255g) chocolate chips semi-sweet or milk
  • 24 Oreos any flavor

For the Brownies:

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Instructions

  • Preheat oven to 350°. Line a 9×13” pan with foil or parchment paper and spray with cooking spray.
  • Make the cookies: Stir melted butter with both sugars. You can use a mixer if you want, but it's not needed. Mix in egg, vanilla extract, baking soda, and salt. Stir in flour, then stir in chocolate chips.
  • Press the cookie dough into the bottom of the prepared pan. Top evenly with Oreos.
  • Make the brownies: Place the baking chocolate and butter in a large, microwave safe bowl. Heat on HIGH power for 2-3 minutes, stirring every 30 seconds, until chocolate is smooth. Stir in sugar. Add eggs, vanilla, and cocoa and stir well. Add flour and stir carefully.
  • Spread brownie batter over the top of the Oreos in prepared pan.
  • Bake for 30-40 minutes until the top looks done and the center is no longer jiggly.

Recipe Video

Recipe Notes

  • You’re going to want a 9×13-inch pan for this recipe, one with 2″ sides. Use metal or glass, whichever you prefer.
  • You can also make these in muffin tins if you want Oreo Cookie Brownie Cupcakes!
  • I like to cover the pan with foil and spray with nonstick cooking spray to make removal and slicing easier.
  • First, press the chocolate chip cookie dough into the bottom of the pan.
  • I used regular Oreos but you could use double stuff or any flavor you want.
  • Peanut Butter Cup Slutty Brownies: use regular size peanut butter cups instead of the Oreos.
  • Use Peanut butter cookie dough or peanut butter chocolate chip cookies instead of the chocolate chip cookies.

Recipe Nutrition

Serving: 1serving | Calories: 367kcal | Carbohydrates: 50g | Protein: 4g | Fat: 18g | Saturated Fat: 10g | Cholesterol: 54mg | Sodium: 197mg | Potassium: 103mg | Fiber: 2g | Sugar: 34g | Vitamin A: 360IU | Vitamin C: 1mg | Calcium: 34mg | Iron: 3mg
Nutritional information not guaranteed to be accurate
Course Dessert
Cuisine American


Dorothy Kern

Welcome to Crazy for Crust, where I share recipes that are sometimes crazy, often with a crust, and always served with a slice of life.

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32 Comments

  1. This was so delicious. I’ve also made boxed brownies and this was not only easy but so good!! Thanks for sharing!!

  2. I made these brownies not too long ago for a family BBQ. They were an absolute hit! Everyone was asking me for the recipe! Will definitely make again.

  3. You could call them Chippy Brownies….lol Pretty close to the same feel as slutty. I totally get why you don’t like to use the word slutty, I’m that way too. Another one that bothers me, is Crack ‘anything’. When we have such a drug problem why on earth make it sound like drugs, or crack is just a casual thing? I would not feed crack to my family that I love and cherish.
    I’m looking forward to trying your ‘3 Layered Brownies’. Thank you for the recipe.

  4. I like the idea of making these into “cupcakes”. How long should I bake them? Any changes to the recipe? Thanks!