Cookies ‘n Cream Extreme Brownies

Oh. My. Gosh. YOU GUYS. These brownies are, like, EPIC. You may see the title and say “Pffft. Cookies ‘n Cream Brownies. So? They have Oreos. So what?”

But you GUYS. They’re not just Oreo Brownies. They’re unlike any brownies I’ve ever made before. Just LOOK at them!

Cookies 'n Cream Extreme Brownies - one of the best brownie recipes EVER! From Extreme Brownies: 50 Recipes for the Most Over-the-Top Treats Ever by Connie Weis/Andrews McMeel Publishing, 2014

RIGHT??? See what I mean???

Back when I posted these Reese’s Brownies with Oreo Crust, I thought I’d outdone myself in the epic-holy-OMG-serious brownie business. But I was wrong. Oh, so wrong.

These Cookies ‘n Cream Brownies are extreme brownies, to the nth degree. Fudgy, dark chocolate brownie, Oreos, fluffy white frosting, MORE Oreos, and chocolate sauce.


Cookies 'n Cream Extreme Brownies filled with Oreos and topped with fluffy white frosting! From Extreme Brownies: 50 Recipes for the Most Over-the-Top Treats Ever by Connie Weis/Andrews McMeel Publishing, 2014

This recipe is from my new favorite cookbook, Extreme Brownies by Connie Weis. I received this book a few weeks ago and I’ve been drooling over the recipes ever since. (Remember the caramel peanut butter cookie bars last week? That Caramel????)

Her entire book is full of brownie recipes and every single one has this brownie base that is a HUNK ‘O brownie. Like, seriously.

The recipe starts with 2 sticks of butter. That just tells you it has to be good. #everythingisbetterwithbutter

Then you add dark chocolate and cocoa powder and sugar and vanilla. And THEN you add Oreos. I’m not kidding, the pan of baked brownies is heavy. You could use it to knock out an intruder. But that would be wasting brownies, so maybe use a bat for that instead.

Seriously, have you looked at these brownies yet?

Cookies 'n Cream Extreme Brownies {From Extreme Brownies: 50 Recipes for the Most Over-the-Top Treats Ever by Connie Weis/Andrews McMeel Publishing, 2014}

So this recipe is a little more involved than my normal brownie recipes. There’s some sifting involved but that’s okay, it’s worth it. You have to let the brownies sit overnight, but you know that makes everything taste better (like cookie dough).

The brownies alone are to die for. Jordan (who doesn’t like dark chocolate, mind you) proclaimed these the BEST brownies she’s ever had. (Which kind of was a blow to my psyche but whatever, she’s 9. She doesn’t get it.)

Then you top them with a fluffy white frosting that tastes like Oreo filling. The secret to the filling? Marshmallow fluff. Who knew?

Then, because there’s not enough Oreos inside the brownies, you top the frosting with more (mini) Oreos and a chocolate sauce.


Cookies 'n Cream Extreme Brownies {From Extreme Brownies: 50 Recipes for the Most Over-the-Top Treats Ever by Connie Weis/Andrews McMeel Publishing, 2014}

A few notes about this recipe:

  • In her book, Connie calls for Dutch-process cocoa and 60% cacao chocolate. Now, because I bake a lot, I know where to get that stuff, but I don’t usually stock it. I adapted the recipe using what I (and most regular bakers) have on hand. I used Hershey’s Special Dark chocolate chips AND cocoa powder. You can also use regular cocoa powder (not the special dark), and I believe some of the other brands of chocolate chips have darker than semi-sweet flavors. Check your local store.
  • Yes, you need cake flour. I’m sorry. I feel the same way about having to buy another flour. But if you forget, or need these rightthisminute before you can go shopping, did you know you can make your own cake flour?
  • Typically, I don’t use Crisco (vegetable shortening) in my recipes. But, in the interest of sticking with the recipe, I used it and the frosting is amazing. I suggest buying the sticks of Crisco for easy portioning. (Who wants to clean that measuring cup??)
  • Because it’s September, the white chocolate covered Oreos are not in stores. Those are a seasonal product for the holidays, so if you see them, buy 2 boxes and use them instead of the regular Oreos. But regular work just fine…obviously. You could also try these with mint or peanut butter Oreos. Can you imagine??
  • These require a napkin and a fork. They can also serve as a meal. Holy cow. Did you LOOK at them?

And I’m still dreaming about that frosting! I cannot wait to make that again really soon.

EPIC Cookies 'n Cream Extreme Brownies {From Extreme Brownies: 50 Recipes for the Most Over-the-Top Treats Ever by Connie Weis/Andrews McMeel Publishing, 2014}

Seriously – these are EPIC. Make them and then get them out of your house immediately. It’s what I had to do!

Did you make this recipe?

Cookies ‘n Cream Extreme Brownies

These brownies are extreme! They’re fudgy, dark, chocolatey, full of Oreos, and topped with a mouth-watering fluffy white frosting!


For the Brownies:

  • 2 sticks (1 cup or 8 ounces) unsalted butter
  • 1 1/3 cups 60% cacao bittersweet chocolate chips (I used Hershey’s Special Dark)
  • 4 large eggs
  • 2 cups granulated sugar
  • 1/4 teaspoon salt
  • 1 1/2 teaspoons pure vanilla extract
  • 1/4 cup + 1 tablespoon cake flour
  • 1/4 cup + 2 tablespoons unsweetened cocoa powder (Dutch process or regular or Special Dark)
  • 15 Oreo Cookies (or, if you can find them, use the White Fudge Covered Oreos)

For the Fluffy White Frosting:

  • 8 tablespoons vegetable shortening (Crisco)
  • 1/2 stick (1/4 cup) unsalted butter, softened
  • 1 cup marshmallow creme (such as Fluff)
  • 1 teaspoon pure vanilla extract
  • 1 teaspoon vanilla bean paste (or another 2 teaspoons pure vanilla extract)
  • 1 1/4 cups powdered sugar


  • About 1 1/4 cups (or more) Oreo Mini Cookies
  • 2 tablespoons unsalted butter
  • 2 tablespoons light corn syrup
  • 1/2 cup semisweet chocolate chips
  • 2 teaspoons very hot water


  1. Preheat oven to 350°F. Line a 9×13” pan with foil and grease with butter or spray with cooking spray.
  2. Cut the butter into 1-inch slices and place in a small saucepan. Melt over low heat and add the chocolate chips, stirring until the chocolate is melted and smooth. Turn off the burner but leave the pan on it (to stay warm).
  3. Whisk the eggs in a large bowl. Add the sugar and salt and whisk until incorporated. Gradually whisk the chocolate mixture into the egg mixture. Whisk in the vanilla.
  4. Place the flour and cocoa in sifter or a wire mesh strainer. Sift directly into the batter and stir with a spatula. Pour batter into prepared pan and spread until even. Place the 15 large Oreos evenly on top and press down lightly to cover with the batter.
  5. Bake for 28-34 minutes until a toothpick inserted in the center comes out clean. Cool to room temperature on the counter, then cover and let sit overnight (you can also refrigerate it overnight).
  6. Make the frosting: beat shortening and butter in a stand mixer with the paddle attached (or a hand mixer). Mix in marshmallow creme and vanilla. Slowly mix in powdered sugar. Spread frosting evenly over top of the brownies. Top evenly with mini Oreos.
  7. Make the topping: melt the butter and corn syrup in a small saucepan. Turn off the heat and stir in the chocolate chips, then stir in the water to thin. Drizzle over the top of the frosting. Chill the frosted brownies for at least 1 hour until the frosting and topping sets. Remove from pan and slice into bars.


I used regular Oreos for this, but at holiday time try using the white fudge covered Oreos (those are a seasonal product).

From Extreme Brownies: 50 Recipes for the Most Over-the-Top Treats Ever by Connie Weis/Andrews McMeel Publishing, 2014

All images and text ©. Please do not use my images without prior permission. If you want to republish this recipe, please re-write the recipe in your own words, or link back to this post for the recipe.


Reese’s Brownies with Oreo Crust

Oreo Peanut Butter Cup Brownies (5 of 9)w

Brownie Gooey Bars

Brownie Gooey Bars (4 of 5)

Peanut Butter Swirl Brownies

Peanut Butter Swirl Brownies (1 of 4)w

Sweets from friends:
Ultimate Chocolate Chip Cookie ‘n Oreo Fudge Brownies by Kevin & Amanda
Browned Butter Brownies by Something Swanky
Nutella Brownies by Buns in My Oven

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  1. I was going to be perfectly content with my lunch salad today. Now that’s no longer the case. Gee, thanks, Dorothy. 🙂
    These look beyond my wildest dreams! I’ve gotta get that baking book!

  2. Man oh man those look insane! I love it!

  3. It’s killing me, I’ve been trying to avoid sweets, but then you keep on posting all these luscious, sweet, to die for recipes that all LOOK SO GOOD! You wouldn’t have to twisting arm to try one of these brownies! Yum!

  4. Oh. My. Goodness….
    They look totally divine!!! That fudgy brownie with oreos (oreos!) and homemade oreo filling for the frosting!?! This recipe deserves the hashtag of – #whatdiet
    Amazing as usual Dorothy, keep up the sweet work!

  5. I need no further convincing. You had me at Oreo. Omg, I die.

  6. The tooth marks, that shot. Whoa. Love it. Just tells you how fudgy they are. Thank you for providing all the adaptations and suggestions you used that most people have on hand or can access without going broke, i.e. Hershey’s Special Dark, their dark choc chips, etc. And cake flour and Crisco. I always have the two on hand for that once a year recipe that needs them. And always have a package or 4 on hand of Oreos and Fluff. We could both open our own baking supply stores I bet 🙂 But yeah I LOVE the sounds of that frosting!! The filling of an Oreo is like…the best.

    I need to thumb through this book too and make something from it because the two things you’ve made have me SOLD! Pinned of course!

  7. I think I just fell in love with these brownies, Dorothy! The look AMAZING! Cookies and cream in a brownie is definitely my kind of dessert! Pinned!

  8. Cookies and Cream anything in my opinion is Epic! These look amazing!! I rarely top my brownies, but I think I might have to try the marshmallow fluff “icing”! Love all the other brownies too!!

  9. I seriously gasped when I saw these. I need them. Like 10 minutes ago. I have not baked anything since before my surgery but these just need to happen!!

  10. Oh my goodness….heavenly!! Anything with oreos has got to be amazing!! They look so sinful and worth every calorie….lol!! Thanks for the recipe!!

  11. Hi Dorothy!
    I love that you’re enjoying my book EXTREME BROWNIES: 50 RECIPES FOR THE MOST OVER-THE-TOP TREATS EVER and am glad that you liked my caramel layer and now my Cookies ‘n’ Cream Extreme Brownies. Your readers seem to like them too! I must insist that since my recipes ARE copyrighted (as yours in your new book Baking Mash-Ups surely are) that I be given credit as the source/creator in the actual recipe (that readers will print out) on your blog. Otherwise, as my recipe drifts over onto other blogs, it will be credited to Crazy for Crust. Thank you! Connie Weis

  12. O.M.G.

    First, there’s a whole book filled with brownies like this?! And second, I need one of these. Right now.

  13. Everything is always better with extra butter! Love the cream layer on top, these brownies look insanely delicious.

  14. Got your new cookbook today after pre-ordering it from Amazon. Wow! Pictures are beautiful and the recipes look awesome. Can’t wait to try them! Good job and congratulations!

  15. Oh yeah, you can send some of these over to me RIGHT NOW!!!!

  16. OH MY! I can’t describe my excitement here. I have only ever dreamed of something so magical – they look INCREDIBLE!

  17. Whoa! These totally look epic! I’m dying over that fluffy frosting with the oreos in it!! YUM!

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  19. I saw your teaser on IG and could not wait to see these! These are pure genius and the best brownie treat I could think of! Just awesome Dorothy! Pinned 🙂

  20. YOur posts always make me laugh! “could knock out an intruder”…..HA!!! These truly look to die for! I want to reach through the computer and just lick all that fudge sauce right off the top of each one!! 😉

  21. These look so good! I was just looking at some gluten free oreos and thinking that I haven’t had a cookies and cream type dessert in FOREVER. Must change that ASAP! 🙂

  22. Love how rich and fudgy these look! So good!

  23. Love the new blog design!!! And also these brownies?!?! Oh my, where do I start? Just need to make them ASAP!

  24. I love your new site! Sooo pretty!!

  25. Your new site design is just wonderful! One day I would LOVE to have a design from Purr. So cute! 

    Also, these brownies. Totally calling my name! They look so fudgy and I love all those Oreos! 🙂

  26. I have already commented on this post but I LOVE the new design, well done Dorothy!!! x

  27. Hi Dorothy, these brownies are jut killer. You are so amazing.

    I LOVE LOVE LOVE this new website design. It showcases your beautiful pics nicer and honestly it looks more sophisticated.

    VERY NICE improvement. Thanks, Iram

  28. OH MY GAWD! I remember seeing the preview of this and I already knew it was going to be good. These are indeed EPIC! I so want to lick my screen when I look at this. Beautiful!

  29. Wow these look great and so does your new design! I’m so excited for you.

  30. Oh man, these look incredible! I absolutely love the new site design. It’s a beautiful showcase for your delicious goodies! 

  31. These brownies look EPIC.. I think they combine every naughty and delicious food that I love too! Definitely craving a bite right now!

  32. You said, “two sticks of butter,” and I said, “sign me up!” These look ridiculous! I just can’t even with these brownies. Epic is so the perfect word. So soft, so dense, so chocolatey! 

  33. Oh man, these brownies do look like they can knock out an intruder haha! So decadent and I am in love with all everything in here! Pinned:) 

  34. Um, yeah — these are the bees knees! Most extreme brownies I’ve ever seen and I want ALL OF THEM!! 

  35. First time visiting since your new layout. Looks awesome!

    Go big or go home, these brownies look to die for!

  36. This IS epic.  Wow. I may just have to share this with my peeps on my blog (all credit back to you of course).  Hopefully I don’t have a heart attack after eating these though.

  37. Heck to the yes! No kidding, just looking at them has my jaw on the floor. I can only imagine what actually biting into one would be like. Fantastic photos Dorothy! You captured the extreme fudginess beautifully!

  38. I’m not even kidding – it’s 11pm here and just laying eyes upon these is enough to stop me from sleeping. CRAVING. They look fantastic! 

  39. Oh man, these are just calling for me!!! I love everything about them! Yum yum yummm! 🙂 

  40. SHUT THE FRACK UP!!!!!!!  Pinning. Making. Eating. DYINGGG

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  43. Hi – cant wait to make these my kids will love them – is there a possibility that I could get the cups converted in ounces
    Thanks xx

  44. Wow!!! These look amazing!! Oreos and Marshmallow fluff!. Yum!!  I’d love to try them out.. Not sure where I can get vegetable shortening from, way down here in Southend Africa! 

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  50. I love the cookies and cream brownie. if I could pic the best baker it would be you

  51. Pingback: Cookies’n Cream Extreme Brownies

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  54. Hi Dorothy! This is haven! Those pictures are watermouthering!!! You’re attempting me! I sould ry to eat moreveggies and less wonderful things like this, but with this post all my good reasons are failing a part!

    Thanks for sharing these recipe, I think I’ll make it on Saturday!!!

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  65. Can the oreo brownies be frozen i want to make ahead of time and place pn the table for 1 week ahead. Hoe long will it keep. Thanks for the recipe.

  66. We’re in the midst of making these tonight and they have turned out great so far.  My son is about to making the frosting and we notices that the amount of butter listed has a problem–it says 1 stick (1/4 cup or 4 ounces)  One stick of butter is 1/2 cup not 1/4 cup, but it is 4 ounces.  What’s the correct amount?

  67. very nice recipe  
    how many days we  can save this in fridge  ? 

  68. What can I use to replace the marshmallows my love doesn’t like them

  69. Does this have to sit overnight, or is it okay to frost once cooled?

  70. Thank you! I made it last night for work today, and I had a sample this morning. It is to die for!

  71. Could you use black cocoa powder instead of the ones you have listed?

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