Triple Layer Slutty Brownies with Chocolate Chip Cookie Base
An indulgent dessert bar featuring three distinct layers that create the ultimate treat. The bottom layer is a chewy chocolate chip cookie base, followed by whole Oreo cookies, and topped with rich fudgy brownies. This crowd-pleasing dessert combines everyone's favorite sweets into one irresistible bar that's perfect for parties, potlucks, or when you want to impress. The contrast of textures and flavors makes each bite different, while the impressive layered appearance creates a showstopping dessert that feeds a crowd.
Ingredients
- ½ cup unsalted butter, melted
- ⅓ cup granulated sugar
- ½ cup light brown sugar, packed
- 1 large egg
- 1 teaspoon vanilla extract
- ½ teaspoon baking soda
- ½ teaspoon salt
- 1 ½ cups all-purpose flourgluten-free flour blend1:1gluten-freegluten-free
may affect texture slightly
- 1 ½ cups chocolate chips, semi-sweet or milk
- 24 Oreos, any flavorchocolate sandwich cookies1:1brand-substitution
any brand works
- 4 ounces unsweetened baking chocolate, coarsely chopped
- ¾ cup unsalted butter
- 1 ¾ cups granulated sugar
- 3 large eggs
- 2 tablespoons unsweetened cocoa powder
- 1 cup all-purpose flourgluten-free flour blend1:1gluten-freegluten-free
may affect texture slightly
Instructions
- 1
Preheat oven to 350 degrees
- 2
Line a 9x13 inch pan with foil or parchment paper and spray with cooking spray
- 3
Stir melted butter with both sugars for cookie layer
- 4
Mix in egg, vanilla extract, baking soda, and salt
- 5
Stir in flour, then stir in chocolate chips
- 6
Press the cookie dough into the bottom of the prepared pan
- 7
Top evenly with Oreos
- 8
Place the baking chocolate and butter in a large, microwave safe bowl
- 9
Heat on HIGH power for 2-3 minutes, stirring every 30 seconds, until chocolate is smooth
- 10
Stir in sugar
- 11
Add eggs, vanilla, and cocoa and stir well
- 12
Add flour and stir carefully
- 13
Spread brownie batter over the top of the Oreos in prepared pan
- 14
Bake for 30-40 minutes until the top looks done and the center is no longer jiggly
Tips
Let the bars cool completely before cutting to ensure clean slices and prevent the layers from falling apart
Use room temperature eggs for easier mixing and better incorporation into the brownie batter
Line the pan with parchment paper with overhang to easily lift the bars out for cutting
Good to Know
Store covered at room temperature for up to 1 week or refrigerate for up to 2 weeks
Can be made 2 days ahead and stored covered
Serve at room temperature or slightly chilled, cut into squares
Common Mistakes
Do not overbake to avoid dry brownies
Press cookie layer firmly to prevent separation
Let cool completely before cutting to avoid messy slices
Substitutions
Dairy-Free Swaps
Gluten-Free Swaps
may affect texture slightly
General Alternatives
any brand works
FAQ
Can I use different cookie flavors for the base?
Yes, you can substitute the chocolate chip cookie base with sugar cookie dough or peanut butter cookie dough for different flavor combinations.
What if my brownie layer is still jiggly after 40 minutes?
Continue baking in 5-minute increments until the center is just set but still slightly soft, as it will continue cooking from residual heat.
How long do these keep and can I freeze them?
They keep for up to a week at room temperature or can be frozen for up to 3 months when wrapped tightly in plastic wrap and foil.