We love a good fudgy and chewy dessert. Everyone in the family has their favorite, whether it be cookies or brownies. But now you can make everyone happy with one dessert.
After we made these amazing chocolate chip cookies and Oreo fudge brownie bars, my husband took them to work. Some of the guys he works with called them “brownies on steroids.” They were really good, especially with ice cream and chocolate on top!
Recipe Ingredient Notes
To make Ultimate Chocolate Chip Cookie n’ Oreo Fudge Brownie Bar, you will need the following ingredients:
- Butter , softened
- Sugar
- Brown sugar
- Eggs
- Vanilla
- Flour
- Baking soda
- Salt
- Milk chocolate chips, 1 package
- Double stuff Oreo cookies, 1 package
- Brownie mix
- Water
- Vegetable oil
- Eggs
- Hot fudge topping
Equipment Needed
For this recipe, you only need a few simple kitchen tools. We recommend using the following equipment:



How to make Ultimate Chocolate Chip Cookie n’ Oreo Fudge Brownie Bar
- Preheat oven to 350℉.
- Cream the butter and both sugars in a large bowl with an electric mixer on medium speed for 3-5 minutes. Add the eggs and vanilla and mix well to thoroughly combine.
- In a separate bowl, whisk together the flour, baking soda and salt, then slowly incorporate with the mixer until the flour is just combined.
- Fold in chocolate chips.
- Spread the cookie dough in the bottom of a 9 × 13 inch baking dish that’s been lined with parchment paper and sprayed with cooking spray.
- Top with a layer of Oreos.
- Mix together brownie mix according to directions on the box, adding an optional ¼ cup of hot fudge topping to the mix.
- Pour the brownie batter over the cookie dough and Oreos.
- Bake at 350℉ for 35-45 minutes.
- Cool for a few minutes before slicing.
- You can serve these warm or cold.


Storage Suggestions
If you manage to have any leftover Bars + Brownies, these can store well if prepped appropriately. Once they have cooled completely, here is how you can store it:
- Refrigerator: Place in an airtight container and refrigerate for up to 1 week. Let them come to room temperature before serving for the best texture and flavor.
- Freezer: To freeze, make sure bars and brownies are completely cooled and unfrosted. Wrap tightly in plastic wrap (or Press & Seal) and then place in a freezer-safe bag or container. For easier portioning, wrap individual squares before freezing. Don’t forget to label with the date. They’ll stay fresh in the freezer for up to 3 months.
Ultimate Brownie Bars FAQ’s
We love this recipe the way it is written because there is nothing better than homemade chocolate chip cookies. And we may sneak a little of the cookie dough while we are making them.
But for convenience you could definitely use store bought cookie dough in place of the homemade cookie dough in this recipe.
First of all, if you have any leftovers we are amazed. These went so fast at our house. But it is so easy to store the leftovers. They are fine to put on a plate covered with plastic wrap for a few hours.
If you are saving some for the next day, place them in an airtight container and keep them in the fridge. You can eat them cold, or let them set out for an hour before serving. Or the yummiest way is to microwave them until a little warm. YUM!
These Ultimate Chocolate Chip Cookie and Oreo Fudge Brownie Bars can stand on their own just fine. It is the ultimate brownie and it’s amazing.
If you want to kick them up a bit, top them off with a scoop of vanilla ice cream and some chocolate syrup or hot fudge. You will want to sit back in a nice comfy chair and enjoy every bite.
Enjoy More Delicious Brownies Recipes
There’s nothing better than an easy brownie or bar recipe. Check out our comprehensive list of brownies, bars, and blondies here.

Ultimate Chocolate Chip Cookie n’ Oreo Fudge Brownie Bar Recipe
Ingredients
- 1 cup butter , softened
- 1 cup sugar
- ¾ cup brown sugar
- 2 eggs
- 1 Tablespoon vanilla
- 2 ½ cups flour
- 1 teaspoon baking soda
- 1 teaspoon salt
- 12 ounces milk chocolate chips, 1 package
- 15.35 ounces double stuff Oreo cookies, 1 package
- 18.3 ounces brownie mix
- 3 Tablespoons water
- ½ cup vegetable oil
- 2 eggs
- ¼ cup hot fudge topping
Instructions
- Preheat oven to 350℉.
- Cream the butter and both sugars in a large bowl with an electric mixer on medium speed for 3-5 minutes. Add the eggs and vanilla and mix well to thoroughly combine.
- In a separate bowl, whisk together the flour, baking soda and salt, then slowly incorporate with the mixer until the flour is just combined.
- Fold in chocolate chips.
- Spread the cookie dough in the bottom of a 9 × 13 inch baking dish that's been lined with parchment paper and sprayed with cooking spray.
- Top with a layer of Oreos.
- Mix together brownie mix according to directions on the box, adding an optional ¼ cup of hot fudge topping to the mix.
- Pour the brownie batter over the cookie dough and Oreos.
- Bake at 350℉ for 35-45 minutes.
- Cool for a few minutes before slicing.
- You can serve these warm or cold.



















That looks delicious!
The Farm Girl
mmmmm now that is my kind of brownie:-)
Oh wow those look YUMMMY!!!
Thanks for following me!
I’m following you too (sorry I’m a bit behind)
I really like your blog and I can’t wait to get to know you! 🙂
Katrine
thegentleflower.blogspot.com
http://www.etsy.com/shop/TheGentleFlower?ref=si_shop
This looks rich and delicious! I love double-stuffed Oreos. I’d like to invite you to share your recipes on A Well-Seasoned Life’s Sweet Indulgences Sunday.
http://www.wellseasonedlife.com/2011/06/sweet-indulgences-sunday-9.html
Those are definitely the ultimate. So much chocolaty goodness.
Oh, they look yummy!!
Thanks for linking to a Round Tuit!
Hope you have a great week!
Jill @ Creating my way to Success
http://www.jembellish.blogspot.com/
LOL. “On steroids” I think is the perfect description. Thanks for participating at Joy of Desserts.
Hi!
Your Bars look lovely! Can’t wait to try these out!
Thank you for following my blog. I’m following you back too! 🙂
Alia
http://aliascreativelife.blogspot.com/
This looks beyond incredible!
Those look so good! Like a sweet attack!
This sounds so good and sinful! Would you come over to my link party tomorrow and share your recipes with us at Cast Party Wednesday? http://www.ladybehindthecurtain.com
I hope to see you there!
These look delicious…I love oreo cookies!
That looks so good! Thanks for posting!
Jill @ http://kitchenfunwithmy3sons.blogspot.com/
Dangit, I’m so sick of being on this diet! These look soooo soooo good! 🙂
http://www.iheartmygluegun.com
I am going on vacation next week and would love to feature this on my blog for Tasty Treats Tueday. Oh my, how good does this look!!!!
The feature will be up Tuesday, the 28th.
Your blog is my go to for all things yummy!!!!
ladeedacreations.com
they look seriously delicious. Tone
That looks sinful…
Thanks for linking to Creative Juice last week. Hope to see you back this evening…
Seriously freaking awesome! Holy cow — I need some of these!
Yummo! You might like my newest post..snickers! Come check em out @bridgetbakes.blogspot.com
All Post are nice Good Keep it up. By Overnight Prints with Brochure Printing
Do you think these would work with store bought cookie dough?
Store bought cookie dough should work just great! -The Six Sisters
Hello! I have made these 2 times now and I can never get the middle to cook all the way. They are a ooey-gooey delicious mess. Any tips on getting them to cook all the way through? I have tried the covering in foil for 30 mins / uncovered for 20 mins.
-Thank you! 🙂
Hi Sarah! These are a heavy, gooey brownie bar. You could try using 1 square of margarine and 1 square of butter. Butter tends to sink a little. Maybe cook just a little longer if you can without burning. Do you know if your oven temp is a little off? That can make a difference. Sorry the middle isn’t cooking all the way, these have a lot of ingredients that are not cheap!! Hope this helps! Thanks so much for stopping by our blog. Have a great day!
Cyd (mom of the Six Sisters)
I loved this recipe. My husband really likes it also. One thing that I did differently was, I made a chocolate gnache and poured it over the top of the brownies right after I got it out of the oven. By doing this it keeps the moisture in the dessert so that it’s always moist and it doesn’t dry out. Makes for a better and tastier dessert.