These rich and decadent bars are the ultimate indulgence for chocolate lovers. With a buttery brownie crust, layers of crushed Oreo cookies, melted chocolate chips, and a generous drizzle of sweetened condensed milk, each bite delivers an irresistible combination of fudgy, creamy, and crunchy textures. Whether you’re baking for a party, a potluck, or just to satisfy a late-night craving, these bars are easy to prepare and guaranteed to disappear fast.
Why You’ll Love This Recipe
Combines the best of brownies, cookies, and chocolate in one dessert
Simple to make with boxed brownie mix and a few additional ingredients
Perfectly gooey center with crisp edges for the ultimate texture
Easily customizable with different toppings or flavors
Great for parties, gifting, or freezing for later
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
1 box dry brownie mix (18.3 ounces)
1/2 cup unsalted butter, softened
1 large egg
1 teaspoon vanilla extract
1 can (14 ounces) sweetened condensed milk
20 Oreo cookies, coarsely chopped (divided)
1/2 cup semi-sweet chocolate chips
1/2 cup white chocolate chips
Directions
Preheat your oven to 350°F (175°C). Line a 9×13-inch baking pan with foil or parchment paper, leaving some overhang on the sides. Lightly spray with nonstick baking spray.
In a large mixing bowl, add the dry brownie mix, softened butter, egg, and vanilla extract. Mix until a thick dough forms. It will resemble cookie dough more than traditional brownie batter.
Press the brownie dough evenly into the bottom of the prepared baking pan to create the crust.
Sprinkle about 1 1/2 cups of the chopped Oreos evenly over the crust.
Add 1/2 cup of semi-sweet chocolate chips and 1/2 cup of white chocolate chips on top of the Oreos.
Slowly pour the sweetened condensed milk over the entire surface, making sure to drizzle it evenly. Use a spatula or knife to gently spread it out if needed.
Sprinkle the remaining Oreo chunks and a small handful of additional chocolate chips on top for added texture.
Bake in the preheated oven for 35 minutes. The bars will look slightly underbaked in the center—that’s what makes them gooey.
Remove from the oven and let them cool completely in the pan before cutting. For clean cuts, refrigerate the bars for 1 to 2 hours once cooled.
Servings and timing
Yield: 24 bars
Prep time: 20 minutes
Cook time: 35 minutes
Total time: 55 minutes
Variations
Use Golden Oreos or flavored Oreo varieties for a twist
Swap the chocolate chips for peanut butter chips, butterscotch chips, or mint chips
Add chopped nuts like walnuts or pecans for crunch
Drizzle with caramel or chocolate sauce after baking for added richness
Make them festive by using seasonal M&M’s or sprinkles on top
Storage/Reheating
Store the bars in an airtight container at room temperature for up to 5 days. For longer storage, refrigerate them for up to 7 days or freeze for up to 2 months. To freeze, wrap individual bars in plastic wrap and place them in a freezer-safe container. To reheat, microwave individual bars for 10–15 seconds until warm and gooey again.
FAQs
1. Can I use a homemade brownie recipe instead of a box mix?
Yes, but make sure to use a thick dough-like brownie base, not a runny batter. You want a firm crust to support the toppings.
2. What type of Oreo cookies work best?
Classic chocolate Oreos work perfectly, but you can experiment with any flavor like peanut butter, mint, or double-stuffed varieties.
3. Do I need to crush the Oreos completely?
No, coarsely chopping the Oreos works best. You want larger chunks to provide texture and crunch throughout the bars.
4. Can I substitute the white chocolate chips?
Absolutely. You can replace them with dark chocolate chips, milk chocolate chips, or even toffee bits for a different flavor.
5. How do I prevent the bars from overbaking?
Take them out after 35 minutes even if they seem underdone. They will continue to set as they cool and stay gooey in the center.
6. Can I double the recipe?
Yes, you can double the ingredients and bake in two 9×13 pans or one large sheet pan. Watch the baking time, as it may need slight adjustment.
7. What’s the best way to cut clean squares?
Allow the bars to cool completely, then refrigerate for at least 1–2 hours before slicing with a sharp knife. Wipe the knife between cuts for neat edges.
8. Can I make these bars gluten-free?
Yes, just use a gluten-free brownie mix and gluten-free chocolate sandwich cookies as substitutes.
9. Do these bars travel well?
Yes, they hold together well and are easy to pack, making them ideal for potlucks, bake sales, or gifting.
10. Why is the sweetened condensed milk important?
It acts as a binding layer that melts into the toppings, creating a fudgy, gooey texture and enhancing the sweetness and richness of the bars.
Conclusion
Gooey Oreo Brownie Bars are everything you want in a dessert—easy to make, ridiculously indulgent, and full of rich chocolate flavor. Whether you’re serving them at a party or treating yourself at home, these bars are guaranteed to impress. With a few simple ingredients and no complicated steps, you’ll have a batch of bakery-quality treats in under an hour.
Gooey Oreo Brownie Bars combine a fudgy brownie crust, crushed Oreos, chocolate chips, and sweetened condensed milk for the ultimate layered dessert. Easy to make and loaded with texture and flavor, they’re perfect for parties, potlucks, or late-night cravings.
Ingredients
1 box (18.3 oz) dry brownie mix
1/2 cup unsalted butter, softened
1 large egg
1 teaspoon vanilla extract
1 can (14 oz) sweetened condensed milk
20 Oreo cookies, coarsely chopped (divided)
1/2 cup semi-sweet chocolate chips
1/2 cup white chocolate chips
Instructions
Preheat oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment or foil, leaving overhang. Lightly spray with nonstick spray.
In a large bowl, mix dry brownie mix, softened butter, egg, and vanilla extract until a thick dough forms.
Press dough evenly into the prepared pan to form a crust.
Sprinkle about 1 1/2 cups of chopped Oreos over the crust.
Top with semi-sweet and white chocolate chips.
Slowly drizzle sweetened condensed milk evenly over the surface. Spread gently if needed.
Sprinkle remaining Oreos and a few extra chocolate chips on top.
Bake for 35 minutes. The center may look slightly underbaked — that’s perfect for a gooey texture.
Cool completely in pan. For cleaner cuts, refrigerate for 1–2 hours before slicing into bars.
Notes
For a twist, use different Oreo flavors or chocolate chip varieties.
Do not overbake — the bars will continue to set as they cool.
Chilling before slicing ensures clean, sharp edges.
Use homemade brownie dough if preferred, but keep the consistency thick.
Great for freezing — wrap individually for easy grab-and-go desserts.
