Introduction
Let’s get one thing straight — calling them “slutty” isn’t just for the clickbait. These Gluten-Free Oreo Cookie Slutty Brownies are scandalously indulgent, stacking three desserts into one decadent bite: a chewy cookie base, a gooey brownie layer, and a middle layer of your favorite gluten-free chocolate sandwich cookies. You know the vibe.
This version swaps out regular flour for a gluten-free blend, so you get all the flavor with none of the gluten. Expect rich chocolate, soft centers, crispy edges, and serious crowd-pleasing potential — all done in under an hour.
Want more gluten-free inspo? Check out our [Gluten-Free Banana Bread]!
Table of Contents
What Are Slutty Brownies?
Ever wondered what happens when a brownie, a cookie, and an Oreo walk into a pan? You get Slutty Brownies — no shame, just layers. Born out of internet baking culture in the 2010s (thank you, Pinterest), they’re a cheeky treat with serious wow-factor. And yes, they’re just as extra as they sound — in the best way.
Why You’ll Love This Slutty Brownies Recipe
- They’re fully gluten-free but taste bakery-level delicious.
- No fancy tools needed — just a bowl, spoon, and oven.
- Prepped in 20 minutes (even faster with a food processor!).
- Wildly indulgent and perfect for any celebration.
Pro Tip: Craving even deeper chocolate flavor? Add a pinch of espresso powder to the brownie batter!
Key Ingredients

For the Cookie Layer:
- 1/2 cup (115g) unsalted butter, melted
- 1/2 cup (100g) brown sugar
- 1 large egg
- 1 tsp vanilla extract
- 3/4 cup (90g) gluten-free all-purpose flour (with xanthan gum or add 1/2 tsp)
- 1/4 tsp salt
- 1/2 cup (90g) chocolate chips
For the Oreo Layer:
- 12 gluten-free chocolate sandwich cookies (like GF Oreos)
For the Brownie Layer:
- 1/2 cup (115g) unsalted butter, melted
- 1/2 cup (100g) granulated sugar
- 1/2 cup (100g) brown sugar
- 2 large eggs
- 1 tsp vanilla extract
- 1/3 cup (30g) cocoa powder
- 1/2 cup (60g) gluten-free all-purpose flour
- 1/4 tsp salt
Step-by-Step Instructions

- Preheat your oven to 350°F (175°C). Line an 8×8″ pan with parchment paper.
- Make the cookie layer:
- In a bowl, cream together melted butter and brown sugar.
- Stir in the egg and vanilla.
- Mix in the gluten-free flour and salt.
- Fold in chocolate chips.
- Press the dough evenly into the bottom of the prepared pan.
- Layer in the cookies:
- Place the gluten-free chocolate sandwich cookies evenly across the cookie dough base.
- Make the brownie layer:
- In a bowl, whisk melted butter, sugars, eggs, and vanilla until smooth.
- Stir in cocoa powder, flour, and salt until just combined.
- Pour the brownie batter over the cookie layer and spread evenly.
- Bake for 30–35 minutes, until the top is set but the center remains slightly gooey.
- Cool completely before slicing for clean, defined layers.
What to Serve With Slutty Brownies
- A cold glass of oat milk or almond milk
- Vanilla ice cream (dairy-free options work great)
- A shot of espresso
- Fresh berries to balance the richness
- A drizzle of salted caramel or peanut butter

Top Tips for Perfecting Slutty Brownies
Use Room-Temperature Eggs
This helps your batters mix more evenly and gives you smoother textures.
Chill Before Slicing
This makes for neat, clean cuts and keeps the layers intact.
Use a Scale
For accuracy in gluten-free baking, weight is more consistent than volume.
Add Xanthan Gum if Needed
If your flour blend doesn’t have it, add 1/2 tsp for best texture and structure.
Want Bolder Flavor?
Add 1/2 tsp espresso powder to the brownie mix to intensify the chocolate notes.
Storing and Reheating Tips
- Fridge: Store in an airtight container for up to 5 days.
- Freezer: Freeze individual slices for up to 2 months.
- Reheat: Microwave for 10–15 seconds to revive gooey magic!
FAQs
Can I make these in a food processor or stand mixer?
Absolutely! Just be sure not to overmix the gluten-free batter.
Can I make them by hand?
100%! This recipe is totally approachable with just a bowl and spoon.
Does this recipe need xanthan gum?
Only if your gluten-free flour blend doesn’t already include it.
Can I use other gluten-free flours like coconut or buckwheat?
No — coconut and buckwheat absorb moisture differently. Stick with an all-purpose GF blend.
Can I make this dairy-free too?
Yup! Swap the butter for vegan butter and use dairy-free chocolate chips.
Do I need weighing scales?
Highly recommended for consistent, bakery-quality results

Slutty Brownies
Ingredients
For the Cookie Layer:
- 1/2 cup 115g unsalted butter, melted
- 1/2 cup 100g brown sugar
- 1 large egg
- 1 tsp vanilla extract
- 3/4 cup 90g gluten-free all-purpose flour (with xanthan gum or add 1/2 tsp separately)
- 1/4 tsp salt
- 1/2 cup 90g chocolate chips
For the Oreo Layer:
- 12 gluten-free chocolate sandwich cookies
- For the Brownie Layer:
- 1/2 cup 115g unsalted butter, melted
- 1/2 cup 100g granulated sugar
- 1/2 cup 100g brown sugar
- 2 large eggs
- 1 tsp vanilla extract
- 1/3 cup 30g cocoa powder
- 1/2 cup 60g gluten-free all-purpose flour
- 1/4 tsp salt
Instructions
- Preheat oven to 350°F (175°C) and line an 8×8-inch baking pan with parchment paper.
- Make the cookie base: In a mixing bowl, combine melted butter and brown sugar. Stir in egg and vanilla. Mix in flour and salt. Fold in chocolate chips. Press into the bottom of the prepared pan.
- Arrange the gluten-free sandwich cookies evenly on top of the cookie dough.
- Make the brownie batter: In another bowl, whisk melted butter, sugars, eggs, and vanilla until smooth. Stir in cocoa powder, flour, and salt.
- Pour brownie batter over the cookies and spread evenly to cover.
- Bake for 30–35 minutes, until the top is set but the center remains soft.
- Let cool completely before slicing for neat layers.
Notes
-
Total Fat: 14g
- Saturated Fat: 8g
- Cholesterol: 55mg
- Sodium: 120mg
-
Total Carbohydrates: 35g
- Dietary Fiber: 2g
- Sugars: 22g
- Protein: 3g
- Potassium: 90mg