Slutty Brownies – Gooey Oreo-Stuffed Cookie Dough Brownie Bars | Dessert

by DessertIn July 2026 0 comments

Three layers of pure indulgence – chewy chocolate chip cookie dough, crunchy Oreos, and rich fudgy brownie – all baked into one outrageous bar. Meet the Slutty Brownie!

If you're looking for a dessert that pulls zero punches, Slutty Brownies are it[reference:0]. These unapologetically over-the-top bars stack a thick chocolate chip cookie base, a layer of Double Stuf Oreos, and a rich, fudgy brownie topping into one unforgettable treat[reference:1]. They're gooey, chewy, melty, and crunchy all at once – and they've taken the internet by storm for good reason[reference:2].

The name might be bold – but so are the flavours[reference:3]. These Slutty Brownies are the ultimate dessert for birthdays, bake sales, sleepovers, or anytime you're craving something ridiculously indulgent[reference:4]. They're foolproof, customizable, and make-ahead friendly – and with simple pantry ingredients, you can create the most epic dessert bar imaginable[reference:5]. Let's get layering!

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🍫 Ingredients

For the Cookie Dough Layer (bottom):

• ½ cup (113g) unsalted butter, softened[reference:6]
• ¼ cup (50g) granulated sugar[reference:7]
• ½ cup (100g) packed light brown sugar[reference:8]
• 1 large egg[reference:9]
• 2 tsp vanilla extract[reference:10]
• 1 cup (125g) all-purpose flour[reference:11]
• ½ tsp baking soda[reference:12]
• ½ tsp kosher salt[reference:13]
• ½ tsp cornstarch[reference:14]
• ½ cup (85g) semi-sweet chocolate chips[reference:15]

For the Oreo Layer (middle):

• 16 Oreo cookies (Double Stuf recommended)[reference:16]

For the Brownie Layer (top):

• ½ cup (113g) unsalted butter, melted[reference:17]
• 2 oz (57g) semi-sweet chocolate bar, chopped[reference:18]
• ⅓ cup (67g) granulated sugar[reference:19]
• ⅓ cup (67g) packed light brown sugar[reference:20]
• 2 large eggs, at room temperature[reference:21]
• 1 tsp vanilla extract[reference:22]
• ½ cup (63g) all-purpose flour[reference:23]
• 3 tbsp (15g) unsweetened cocoa powder[reference:24]
• ¼ tsp kosher salt[reference:25]
• ½ cup (85g) semi-sweet chocolate chips[reference:26]

Optional Topping:

• Mini Oreo cookies, for pressing into the top[reference:27]
• Flaky sea salt, for sprinkling

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👩‍🍳 Step‑by‑Step Instructions

Step 1: Prepare the pan and preheat the oven

1. Preheat your oven to 180°C (350°F)[reference:28].
2. Line an 8x8-inch (20x20cm) baking pan with parchment paper, leaving some overhang on the sides to use as handles for easy removal[reference:29].

Step 2: Make the cookie dough layer

1. In a medium bowl, use a hand mixer to cream the softened butter and both sugars together until light and fluffy[reference:30].
2. Add the egg and vanilla, and mix until combined[reference:31].
3. Add the flour, baking soda, salt, and cornstarch, and mix until a soft dough forms[reference:32].
4. Fold in the chocolate chips until evenly distributed[reference:33].

Step 3: Make the brownie batter

1. In a separate microwave-safe bowl, combine the melted butter and chopped chocolate[reference:34]. Microwave in 30-second increments, stirring in between, until the chocolate is completely melted and smooth[reference:35].
2. Add both sugars, eggs, and vanilla, and whisk until smooth[reference:36].
3. Add the flour, cocoa powder, and salt, and mix until just combined[reference:37].
4. Fold in the chocolate chips[reference:38].

Step 4: Assemble the layers

1. Press the cookie dough evenly into the bottom of the prepared pan[reference:39].
2. Arrange the Oreo cookies in a single layer on top of the cookie dough, filling any gaps with crumbled Oreos[reference:40].
3. Spoon the brownie batter over the Oreo layer and spread it evenly to the edges of the pan[reference:41].

Step 5: Bake and cool

1. Bake for 35-40 minutes, or until the brownie layer is set and firm in the centre[reference:42].
2. (Optional) After about 15 minutes of baking, press mini Oreos into the top of the brownies for an extra decorative touch[reference:43].
3. Allow the brownies to cool completely in the pan before lifting them out using the parchment paper handles.

💡 Pro tip: For the most delicious results, use Double Stuf Oreos for an extra creamy centre[reference:44]. You can also customize the layers – try using your favourite cookie dough, different flavoured Oreos, or even a flavoured brownie mix for a fun twist[reference:45]!

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❓ Tips & Variations

• Can I use store-bought cookie dough and brownie mix? Absolutely! This recipe is foolproof and customizable – using pre-made dough and mix speeds things up and still delivers incredible results[reference:46].
• What makes them "slutty"? The name is a cheeky nod to the fact that these bars are over-the-top and mash together multiple desserts into one ridiculous treat[reference:47][reference:48].
• Can I make these ahead of time? Yes! Slutty Brownies are make-ahead friendly[reference:49]. Store them in an airtight container at room temperature for up to 3 days, or in the refrigerator for up to a week.
• Can I freeze them? Yes! Wrap individual bars tightly in plastic wrap and freeze for up to 3 months . Thaw at room temperature before serving.
• Flavour twists: Try using peanut butter Oreos, mint Oreos, or golden Oreos for a fun variation[reference:50]. You can also add a sprinkle of flaky sea salt on top before baking for a sweet-salty contrast.
• Yield: Makes about 12 large bars or 16 smaller squares[reference:51].

Three layers of pure indulgence – cookie dough, Oreos, and fudgy brownie! 🍪🍫✨