Let me tell you about my Oreo obsession – it started when I was six, sneaking cookies from the package when Mom wasn’t looking. Now I’ve turned that childhood love into these insanely good cookies and cream brownies that’ll make you forget all about plain old chocolate. The magic happens when rich brownie batter meets crunchy Oreo pieces, all topped with a dreamy cookies-and-cream frosting. Best part? You probably have most ingredients in your pantry right now. These brownies are my go-to for potlucks because they disappear faster than I can say “seconds please!”
Why You’ll Love These Cookies and Cream Brownies
Trust me, these aren’t just any brownies – they’re a full-on Oreo experience in every bite. Here’s why they’ll become your new favorite:
- Crazy easy: Starts with a box mix (shh, our little secret) but tastes totally homemade
- Texture heaven: Chewy brownie meets crunchy Oreo pieces in perfect harmony
- Party superstar: That fluffy frosting piled high makes them look bakery-worthy
- Oreo overload: Packed with cookies in the batter AND frosting – because more is better
- Kid-approved: My niece calls them “grown-up cookies” and steals thirds
Seriously, these disappear faster than cookies in my snack drawer. You’ve been warned!

Ingredients for Cookies and Cream Brownies
Here’s everything you’ll need to make these Oreo-packed beauties – I’ve included my exact measurements because eyeballing it never works with brownies!
- 1 box (18 oz) brownie mix – I use the fudge variety, but any will work
- 2 large eggs – room temperature helps them mix in smoothly
- 1/3 cup whole milk – the fat content makes these extra rich
- 1/3 cup vegetable oil – or melted butter if you’re feeling fancy
- 1 cup chopped Oreos – that’s about 10 cookies smashed into chunks
- 1 cup white chocolate chips – they melt into creamy pockets of joy
For the Dreamy Frosting:
- 1½ cups heavy whipping cream – cold straight from the fridge
- 1/2 cup powdered sugar – sifted to avoid lumps
- 3 tablespoons Oreo cookies and cream instant pudding mix – the secret flavor booster!
- 1 cup chopped Oreos – more cookies? Always!
- Additional chopped Oreos for garnish – because we’re extra like that
Ingredient Notes & Substitutions
Don’t stress if you need to swap things – I’ve tested these tweaks myself:
- No box mix? Use your favorite homemade brownie recipe (about 3 cups batter)
- Milk alternatives work fine – I’ve used almond milk in a pinch
- Dark chocolate chips can replace white for a richer flavor
- Regular pudding mix works if you can’t find cookies and cream flavor
- Gluten-free Oreos make this recipe celiac-friendly
Pro tip: Buy extra Oreos – you’ll want to snack while baking!
Equipment You’ll Need
Before we dive into mixing, let’s grab the tools that’ll make these brownies a breeze. I’ve learned the hard way that having everything ready saves so much frantic searching mid-recipe!
- 9×9-inch baking pan – the perfect size for thick, fudgy brownies
- Parchment paper (or nonstick spray) – no one likes stuck-on brownie casualties
- Large mixing bowl – big enough for enthusiastic stirring without spills
- Hand mixer or stand mixer – essential for that dreamy frosting
- Rubber spatula – to scrape every last bit of batter (my favorite part!)
- Measuring cups and spoons – precision matters with brownies
- Knife or bench scraper – for chopping Oreos and cutting clean squares
That’s it! No fancy gadgets needed – just the basics for brownie magic. Now let’s get baking!
How to Make Cookies and Cream Brownies
Okay, let’s get to the fun part! I promise these are easier than they look – just follow these simple steps for the most amazing Oreo-packed brownies you’ll ever taste.
Step 1: Prep & Mix Brownie Batter
First, let’s set the stage for brownie success. Preheat your oven to 350°F and line that 9×9-inch pan with parchment paper – trust me, you’ll thank me later when these beauties pop right out! Now grab your mixing bowl and let’s make magic happen.
Dump in the boxed brownie mix (no shame in shortcuts!), then add the eggs, milk, and oil. Mix just until combined – we’re not making cake here, so don’t worry about being perfect. The batter will be thick and fudgy, just how we like it.
Now for the best part – gently fold in those chopped Oreos. I like to save a few bigger chunks for that satisfying crunch. The white chocolate chips go on top of the batter after spreading, then I “swirl” them in slightly with a knife. This creates little pockets of melted goodness throughout!
Step 2: Bake & Cool
Pop those beauties in the oven and set your timer for 30 minutes. Here’s my golden rule for perfect brownies: at 30 minutes, do the toothpick test in the center. We want it to come out with a few moist crumbs, not clean – unless you like dry brownies (who does?!). Mine usually take about 35-38 minutes total.
Now comes the hardest part – waiting! Let them cool completely in the pan, about 1-2 hours. I know it’s torture, but if you frost warm brownies, you’ll get a melty mess. Sometimes I cheat and pop them in the fridge to speed things up… just don’t tell anyone!
Step 3: Whip the Frosting
While the brownies cool, let’s make that dreamy frosting. Pour your cold heavy cream into a chilled bowl (this helps it whip faster). Using your mixer’s whisk attachment, beat until soft peaks form – about 2 minutes on medium-high. Now gradually add the powdered sugar and pudding mix, then keep beating until stiff peaks form. You’ll know it’s ready when the cream holds its shape when you lift the beaters.
Gently fold in the chopped Oreos – I like to reserve a handful for topping. The pudding mix is my secret weapon here – it stabilizes the frosting and adds extra cookies and cream flavor. Genius, right?
Step 4: Assemble & Serve
The moment we’ve been waiting for! Spread that fluffy frosting over your completely cooled brownies. I like to pile it high – this isn’t the time for restraint! Sprinkle with those reserved Oreo chunks for crunch and visual appeal.
For perfect squares, use a sharp knife dipped in hot water (wipe clean between cuts). The parchment paper makes lifting them out a breeze. Watch out though – these disappear fast! I always “test” the first one to make sure it’s… you know… safe for everyone else to eat.
Tips for Perfect Cookies and Cream Brownies
Alright, let me share my hard-earned brownie wisdom with you! These little tricks will take your Cookies and Cream Brownies from good to “oh-my-gosh-can-I-have-the-recipe” amazing.
Getting the Oreos Just Right
Here’s my golden rule – chop those Oreos into different sizes! I like some big chunks (about half-cookie pieces) for that satisfying crunch, mixed with finer crumbs that melt into the batter. And listen – don’t toss the filling! Those creamy centers add extra richness when they bake into the brownies.
The Baking Sweet Spot
The biggest mistake? Overbaking! These should be fudgy, not cakey. Pull them out when the edges look set but the center still jiggles slightly. That toothpick test? It should have a few moist crumbs clinging to it, not be clean. Remember – they’ll keep cooking a bit as they cool in the pan.
Frosting Like a Pro
Two musts for perfect frosting: 1) Make sure your bowl and beaters are chilled (I pop mine in the freezer for 10 minutes), and 2) Use cold heavy cream straight from the fridge. If your kitchen’s warm, place the mixing bowl in an ice bath while whipping. You’ll get those gorgeous stiff peaks every time!
Bonus Pro Tips
- For cleaner cuts, chill the frosted brownies for 30 minutes before slicing
- Want extra Oreo flavor? Replace 1/4 cup of the brownie mix with Oreo crumbs
- Accidentally overbaked? A quick microwave zap (10 seconds) brings back the fudgy texture
- No pudding mix? Substitute 1 teaspoon vanilla extract + 1 tablespoon cornstarch
There you have it – my tried-and-true secrets for brownie perfection. Now go impress someone with these!
Fun Ways to Mix Up Your Cookies and Cream Brownies
Oh, the possibilities! While I’m obsessed with the classic version, sometimes I love shaking things up. Here are my favorite ways to put a fun twist on these brownies:
Flavor Swaps That Actually Work
Try using mint Oreos for a cool twist – they taste amazing with the chocolate base. My brother swears by golden Oreos when he wants something a little less sweet. And don’t even get me started on peanut butter Oreos (just add a peanut butter swirl to the batter before baking – heavenly!).
Extra Add-Ins for Texture
If you’re feeling fancy, mix in 1/2 cup chopped pretzels with the Oreos for sweet-salty magic. Or throw in some mini marshmallows during the last 5 minutes of baking – they’ll get all toasty and delicious. For coffee lovers, a tablespoon of instant espresso powder in the batter makes the chocolate flavor really pop.
The best part? No matter how you customize them, they’ll still be packed with that cookies and cream goodness we all love. Just promise me you’ll try the original version first – it’s life-changing!
Serving & Storing Cookies and Cream Brownies
Alright, let’s talk about keeping these beauties fresh – because let’s be real, they rarely last more than a day in my house! Here’s everything I’ve learned about storing and serving these Oreo-packed wonders.
How to Keep Them Fresh
Room temperature is totally fine if you’re planning to devour them within 2 days (let’s be honest, that’s likely). Just cover them loosely with foil or plastic wrap – the frosting stays fluffy this way. I like to store mine in a cake carrier with the lid slightly ajar. The pudding mix in the frosting acts as a stabilizer, so it won’t deflate or get watery.
Freezing Like a Pro
For longer storage (ha, as if!), you can freeze these brownies beautifully. Here’s my method: Cut them into squares first, then place them on a parchment-lined baking sheet. Freeze for 1 hour until firm, then transfer to an airtight container with parchment between layers. They’ll keep for up to 2 months this way. The frosting holds up surprisingly well!
Bringing Them Back to Life
Thaw frozen brownies in the fridge overnight, then let them come to room temperature for about 20 minutes before serving. If you’re impatient (like me), you can microwave a frozen square for 15-20 seconds – just enough to take the chill off while keeping that perfect texture.
Serving Suggestions
These are obviously amazing on their own, but here are some fun ways to serve them:
- Warmed slightly with a scoop of vanilla ice cream (Oreo ice cream if you’re feeling extra!)
- Cubed and layered in parfait glasses with whipped cream
- As the base for an insane brownie sundae – drizzle with chocolate sauce and more crushed Oreos
One warning: These tend to disappear fast, so if you’re serving at a party, you might want to hide a few for yourself first. I speak from experience!
Cookies and Cream Brownies FAQs
I get asked about these brownies all the time – here are the answers to the questions that pop up most often!
Can I use store-bought frosting instead?
Honestly? Don’t do it! The homemade whipped Oreo frosting is what makes these special. Store-bought tends to be way too sweet and heavy for these rich brownies. But if you’re really in a pinch, try mixing a tub of whipped cream cheese frosting with crushed Oreos – it’s not the same, but it’ll work in emergencies!
How long do they last?
If stored properly (covered at room temp), they’re best within 2-3 days. The frosting might start to soften after that, but let’s be real – they never last that long in my house! You can refrigerate them for up to 5 days if needed, but bring them to room temp before serving for the best texture.
Can I make these without eggs?
Absolutely! I’ve successfully used flax eggs (1 tbsp ground flax + 3 tbsp water per egg) when baking for vegan friends. The texture is slightly denser but still delicious. Just make sure your brownie mix is egg-free too, or use a from-scratch recipe.
Why do my brownies sink in the middle?
This usually happens if they’re underbaked or if you opened the oven door too early. Wait until at least the 30-minute mark before checking – that sudden temperature drop can make them collapse. And remember, a slight dip is normal with super fudgy brownies!
Can I double this recipe?
Of course! Just use a 9×13-inch pan instead and add 5-10 minutes to the bake time. The frosting recipe already makes enough for a larger batch. Pro tip: If doubling, rotate the pan halfway through baking for even cooking.

Nutritional Information
Okay, let’s be real – we’re not eating these brownies for their health benefits! But in case you’re curious (or tracking), here’s the nutritional breakdown per serving. Remember, these are estimates – the exact values can vary based on your specific ingredients and how generously you frost those beauties!
Per serving (1 brownie):
- Calories: 320
- Total Fat: 18g (Saturated Fat: 8g)
- Cholesterol: 45mg
- Sodium: 180mg
- Total Carbohydrates: 38g
- Dietary Fiber: 1g
- Sugars: 25g
- Protein: 4g
A little secret from me to you: If you want to lighten these up slightly (why?!), you can use low-fat milk and reduce the white chocolate chips by half. But honestly? Life’s too short – just enjoy every decadent bite!
Rate This Recipe
Okay, be honest – how did your cookies and cream brownies turn out? I live for your baking stories and photos! Drop a comment below to tell me:
- Did you stick to the classic version or try any fun twists?
- What did your family/friends say when they took that first bite? (Mine usually just groan with their mouths full!)
- Any brilliant discoveries or hilarious kitchen mishaps?
Your feedback helps me (and other bakers!) so much. And if you snapped a pic of those gorgeous layered brownies, tag me – I want to see your masterpiece! Nothing makes me happier than knowing my Oreo obsession has spread to kitchens everywhere.
Now go enjoy those brownies – you’ve earned every chocolaty, creamy, crunchy bite!
For more delicious dessert recipes, check out BestAllTop on Pinterest!
Print
Irresistible Cookies and Cream Brownies Recipe You Need Now
- Total Time: 2 hours 55 minutes
- Yield: 12-16 brownies 1x
- Diet: Vegetarian
Description
Delicious brownies packed with Oreo cookies and topped with a creamy frosting.
Ingredients
- 1 box (18 oz) brownie mix
- 2 large eggs
- 1/3 cup whole milk
- 1/3 cup vegetable oil
- 1 cup chopped Oreos
- 1 cup white chocolate chips
- 1½ cups heavy whipping cream
- 1/2 cup powdered sugar
- 3 tablespoons Oreo cookies and cream instant pudding mix
- 1 cup chopped Oreos
- additional chopped Oreos for garnish
Instructions
- Preheat oven to 350℉. Line a 9×9-inch baking pan with parchment paper or spray with cooking spray.
- In a large bowl, mix brownie mix, eggs, milk, oil, and chopped Oreos until well combined.
- Spread batter into the pan. Sprinkle white chocolate chips on top and lightly cover with batter.
- Bake for 35-40 minutes, or until a toothpick comes out mostly clean.
- Let brownies cool completely in the pan for 1-2 hours.
- Beat heavy whipping cream until thickened. Gradually add powdered sugar and pudding mix, then beat until stiff peaks form (2-3 minutes). Stir in chopped Oreos.
- Spread frosting over cooled brownies and garnish with extra Oreos. Cut into squares and serve.
Notes
- Let brownies cool before frosting to prevent melting.
- Store leftovers in an airtight container.
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 brownie
- Calories: 320
- Sugar: 25g
- Sodium: 180mg
- Fat: 18g
- Saturated Fat: 8g
- Unsaturated Fat: 7g
- Trans Fat: 0g
- Carbohydrates: 38g
- Fiber: 1g
- Protein: 4g
- Cholesterol: 45mg