Oh, friends, let me tell you about these Halloween Oreo Brownie Bars! Seriously, if you’re looking for a show-stopping dessert that’s also incredibly easy to make, you’ve come to the right place. The aroma alone, a mix of rich chocolate and that signature Oreo scent, is enough to transport me back to childhood Halloweens. I remember the first time I made these spooky brownie bars. I was rushing, trying to get everything ready for a school bake sale. Let’s just say the first batch was a little… crispy. Okay, burnt. But I was determined! After some tweaking (and a slightly less frantic approach!), I finally landed on this recipe for Halloween Oreo Brownie Bars, and it’s been a family favorite ever since.

These aren’t just any brownies; they’re a decadent treat packed with everyone’s favorite cookie. And honestly, who can resist the combination of chocolate and Oreos? It’s a guaranteed hit! Between school events, costume preparations, and all the spooky fun, this recipe for *Halloween Oreo Brownie Bars* has been a lifesaver. It’s quick enough to whip up on a weeknight and impressive enough to bring to a party. What I love most is how adaptable it is. You can use different types of Oreos, add sprinkles, or even swirl in some peanut butter for an extra layer of flavor. It’s truly a blank canvas for your Halloween creativity! Baking has always been my way of showing love, and these Halloween Oreo Brownie Bars are the perfect example of that. They’re simple, comforting, and full of happy memories. And really, isn’t that what good food is all about? So, grab your apron, and let’s get baking! I promise, you’re going to love these as much as my family does. Check out my other chocolatey recipes for more inspiration, like these pumpkin bars!

What You’ll Need for This Halloween Oreo Brownie Bars

Alright, let’s gather our ingredients. Don’t worry, most of these are pantry staples, making these Halloween Oreo Brownie Bars a breeze to whip up.

1 box (18.3 ounces) brownie mix (plus ingredients called for on the box, usually eggs, oil, and water) – I always use Ghirardelli for my Halloween Oreo Brownie Bars. I find it gives the richest, fudgiest texture.
1 package (about 14 ounces) Halloween-themed Oreos, roughly chopped – You can use regular Oreos if you can’t find the Halloween ones, but the orange filling adds a fun touch! I personally prefer to use double stuffed oreos for extra creaminess for my chocolate Oreo Brownies.
1/2 cup (1 stick) unsalted butter, melted
1/2 cup granulated sugar
1/4 cup unsweetened cocoa powder – For an even deeper chocolate flavor.
1 teaspoon vanilla extract
Pinch of salt
Optional: Halloween sprinkles – Because everything is more festive with sprinkles!

When making *Halloween Oreo Brownie Bars*, you can usually find Halloween Oreos at your local grocery store or Target. If you’re having trouble finding them, you can always order them online. Here’s a trick I learned: if your butter isn’t softened, you can microwave it in 10-second intervals until it’s melted but not bubbling. This saves so much time!

For those of you watching your budget, buying store-brand brownie mix and generic Oreos can save you a few dollars without sacrificing too much on taste. Leftover cocoa powder should be stored in an airtight container in a cool, dark place to keep it fresh. And if you have leftover Halloween Oreos (which, let’s be honest, is unlikely!), they can be stored in an airtight container at room temperature for up to a week. You can find other similar recipes to these Halloween Oreo Brownies online.

Let’s Make This Halloween Oreo Brownie Bars Together

Now for the fun part! Follow along, and we’ll create these delicious Halloween Oreo Brownie Bars together. Don’t worry, it’s easier than you think!

Preheat your oven to 350°F (175°C). Grease and lightly flour a 9×13 inch baking pan. This is key to preventing sticking! I once forgot to grease the pan, and it was a disaster.
Prepare the brownie batter according to the package directions. I like to add a splash of vanilla extract to mine for an extra boost of flavor.
In a separate bowl, combine the melted butter, sugar, cocoa powder, vanilla extract, and salt. Whisk until smooth and creamy. This creates a rich, fudgy layer that takes these brownies to the next level.
Pour the butter mixture into the brownie batter and gently fold until just combined. Be careful not to overmix, as this can make the brownies tough.
Pour half of the brownie batter into the prepared baking pan.
Sprinkle half of the chopped Halloween Oreos evenly over the batter.
Pour the remaining brownie batter over the Oreos and spread evenly.
Sprinkle the remaining chopped Oreos over the top of the batter. Gently press them into the batter so they don’t fall off during baking.
If desired, sprinkle Halloween sprinkles over the top. Because, why not?
Bake for 25-30 minutes, or until a toothpick inserted into the center comes out with fudgy crumbs. In my kitchen, these chocolate Oreo Brownies usually takes about 28 minutes. Keep a close eye on them, as baking times can vary.
Let the brownies cool completely in the pan before cutting into bars. This is the hardest part, I know! But it’s important to let them cool completely, or they’ll be too gooey to cut neatly. I learned the hard way with Halloween Oreo Brownie Bars that patience is key. I sometimes put them in the fridge to speed up the cooling process.
Cut into bars and serve. Enjoy your delicious Halloween Oreo Brownie Bars!

Don’t worry if your Halloween Oreo Brownie Bars aren’t perfectly symmetrical. Imperfection is part of the charm! While the Halloween Oreo Brownie Bars are cooking, I usually tidy up the kitchen or start thinking about what costumes everyone will wear this year. Your Halloween Oreo Brownie Bars should smell like rich chocolate and sweet Oreos. It’s heavenly! For more brownie fun, check out these Halloween Oreo Cookie Boo Brownies.

How I Love to Serve This Halloween Oreo Brownie Bars

My family loves this recipe for Halloween Oreo Brownie Bars when I serve them warm with a scoop of vanilla ice cream. The combination of the warm, fudgy brownie and the cold, creamy ice cream is simply irresistible. They are also perfect for potlucks, school bake sales, or Halloween parties. They’re always a crowd-pleaser! Presentation-wise, I like to dust them with powdered sugar or drizzle them with melted chocolate for an extra touch of elegance. If you have extra Halloween Oreo Brownie Bars (though I doubt you will!), you can store them in an airtight container at room temperature for up to three days. You can also freeze them for longer storage. Just wrap them individually in plastic wrap and store them in a freezer-safe bag.

For a seasonal variation, try adding a teaspoon of pumpkin pie spice to the brownie batter. It adds a warm, cozy flavor that’s perfect for fall. This chocolate Oreo Brownies recipe is perfect for Halloween, of course, but it’s also great for any fall gathering or celebration. Friends always ask for this recipe for Halloween Oreo Brownie Bars whenever I make them. They are such a hit! To add a bit more festive fun, you can also add some pretzels, like in this recipe for Spooky Slutty Halloween Brownies.

Your Halloween Oreo Brownie Bars Questions Answered

Okay, let’s tackle some common questions about these Halloween Oreo Brownie Bars. I’ve been making these for years, so I’ve definitely learned a thing or two along the way!

Q: My brownies are always dry. What am I doing wrong?

A: Overbaking is the biggest culprit! Start checking for doneness a few minutes before the recommended baking time. You know what I do when my Halloween Oreo Brownie Bars look like they are getting too dry? I cover them loosely with aluminum foil to prevent further browning. Also, make sure you’re not overmixing the batter. Overmixing develops the gluten, which can lead to tougher brownies.

Q: Can I use a different type of Oreo?

A: Absolutely! That’s the beauty of this recipe – it’s so versatile. You can use any flavor of Oreo you like. Chocolate Oreos, peanut butter Oreos, even the limited-edition flavors would work well. My family loves it when I use Golden Oreos for a less intense chocolate flavor.

Q: My Oreos sank to the bottom of the brownies. How can I prevent that?

A: Toss the chopped Oreos with a tablespoon or two of flour before adding them to the batter. This helps them stay suspended in the batter. Also, make sure the batter isn’t too thin. If it is, the Oreos will sink more easily. I learned that after a failed batch of chocolate Oreo Brownies – a real mess!

Q: Can I make these ahead of time?

A: Yes! These brownies are actually even better the next day. The flavors meld together, and they become even fudgier. Just store them in an airtight container at room temperature.

Q: What if I don’t have a 9×13 inch pan? Can I use a different size?

A: You can use an 8×8 inch pan, but you’ll need to increase the baking time by a few minutes. The brownies will also be thicker. Just keep an eye on them and check for doneness with a toothpick.

Q: Can I add nuts to these brownies?

A: Absolutely! Chopped walnuts or pecans would be a delicious addition. Just add about 1/2 cup to the batter along with the Oreos. I have readers who love the crunch of nuts with these Halloween Oreo Brownie Bars.

Q: My brownies are too gooey. What did I do wrong?

A: It’s possible you underbaked them. Pop them back into the oven for a few more minutes and check again. Also, make sure you let them cool completely before cutting them. They firm up as they cool.

My Final Thoughts on This Halloween Oreo Brownie Bars

This recipe for Halloween Oreo Brownie Bars isn’t just about baking; it’s about creating memories. It’s about the joy of sharing something delicious with the people you love. And let’s be honest, it’s about indulging in a little bit of chocolatey, Oreo-filled goodness. For me, these brownies are a reminder of all the fun Halloweens we’ve had as a family. I hope they bring you just as much joy!

Here are my pro tips for the best Halloween Oreo Brownie Bars:

Don’t overbake! This is the key to fudgy brownies.
Use high-quality ingredients. It makes a difference!
Let them cool completely before cutting. Patience is a virtue, especially when it comes to brownies.

Here are a few variations you can try:

Peanut Butter Swirl: Swirl a few tablespoons of peanut butter into the batter before baking.
Caramel Drizzle: Drizzle melted caramel over the cooled brownies.
Chocolate Ganache: Top the brownies with a rich chocolate ganache.

My kids love the peanut butter swirl version, while my husband is a fan of the caramel drizzle. I personally like them all! I hope you try this recipe for Halloween Oreo Brownie Bars and make it your own. Add your own personal touches, experiment with different flavors, and most importantly, have fun! I can’t wait to hear about your Halloween Oreo Brownie Bars baking adventures! This is truly a crowd-pleasing Halloween dessert, a spin off from classic chocolate Oreo brownies. So, get in the kitchen and start baking! You got this! These Halloween Oreo Brownie Bars are sure to become a new family tradition.

Halloween Oreo Brownie Bars

Print Recipe

These fudgy Halloween Oreo Brownie Bars are the perfect spooky treat! Loaded with Oreo cookies and decorated for Halloween, they’re sure to be a hit.

Author: Liliana
Prep Time: 15 minutes
Cook Time: 30 minutes
Total Time: 45 minutes
Yield: 16 servings
Category: Dessert
Method: Baked
Cuisine: American

Ingredients

Scale

1 box (18.3 ounces) brownie mix, plus ingredients called for on the box
1/2 cup vegetable oil
1/4 cup water
2 large eggs
1 package (14.3 ounces) Halloween Oreo cookies, divided
1/2 cup Halloween sprinkles
1/4 cup white chocolate chips, melted
Halloween candy decorations (optional)

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Instructions

Preheat oven to 350°F (175°C) and grease a 9×13 inch baking pan.
Prepare the brownie batter according to the package directions, using the oil, water, and eggs.
Roughly chop half of the Halloween Oreo cookies and fold them into the brownie batter.
Pour the batter into the prepared pan.
Arrange the remaining Halloween Oreo cookies on top of the batter.
Bake for 25-30 minutes, or until a toothpick inserted into the center comes out with moist crumbs.
Let the brownies cool completely in the pan.
Melt white chocolate chips in the microwave at 30-second intervals, stirring in between, until smooth.
Drizzle the melted white chocolate over the brownies.
Sprinkle with Halloween sprinkles and add any desired Halloween candy decorations.
Cut into bars and serve.

Notes

For extra fudgy brownies, slightly underbake them. You can also use a different type of Oreo if you prefer.