Oreo Brownies

Oreo Brownies are the perfect dessert for all you Oreo dessert lovers out there. These decadent, fudgy brownies are topped with a light and sweet buttercream frosting and sprinkled with Oreo cookie crumbs. Serve with a glass of milk for an after dinner treat, or bake these to put out on the dessert table at your next get together!

Oreos + Brownies = the best thing to ever happen to you! Seriously you and your family won’t be able to stuff these magical cookies and cream brownies in your face fast enough. Brownie recipes never fail to impress, and this particular one is no different!

Ingredients and Substitutions

• Butter – You’ll need unsalted butter for both the brownie batter and the frosting. For the brownie batter you’ll want to melt the butter, and for the frosting it should be softened. 
• Sugar – White granulated sugar is the best option for these brownies. 
• Cocoa Powder – Since we are adding sugar to the brownie batter, make sure you use unsweetened cocoa powder. I highly recommend using Dutch Processed cocoa powder, but no worries if you can’t find any. 
• Eggs – The eggs should be at room temperature before you add them to the brownie batter. 
• Flour – All purpose flour is the best option for these brownies. When measuring the flour, make sure you spoon it into the measuring cup and level it out before adding it to the recipe. 
• Oreo Cookies – You’ll want crushed Oreo cookies for both the batter and the topping. You don’t have to use the Oreo brand, you can use a generic brand if you prefer.
• Powdered Sugar – Also known as confectioner’s sugar, this is the best type of sugar to use when it comes to making a frosting. If there are lumps in the powdered sugar, make sure to sift them out before starting on the frosting. 
• Vanilla Extract – You’ll need this ingredient for both the frosting and the batter. 
• Heavy Whipping Cream – This ingredient is used to make the frosting nice and creamy. Milk or half and half will work as well. Feel free to add as much liquid to the frosting depending on how thin you like it.

How to Make Oreo Brownies

1. Start by prepping your oven. Position the rack in the very center of the oven before preheating it to 325° F. Next, prepare an 8×8 square baking dish with parchment paper or aluminum foil, then spray it with a non-stick spray. Grab a large, microwave safe mixing bowl and add your butter. Heat the butter in the microwave for about 1 minute, or until the butter is fully melted. To the melted butter, add the granulated sugar, cocoa powder and salt. Mix this together until combined. This will look a little dry, but that is fine. Let it sit for 5 minutes so the butter can cool down. Once cooled, add vanilla extract and incorporate that well. Then, add the room temp. eggs to the batter one at a time, mixing well after each addition. 
2. Once you’ve added all the eggs, grab an electric hand or stand mixer and beat the mixture together on a medium speed for about 3-5 minutes or until smooth. To the smooth batter, add the flour, salt, and baking powder. Fold that together by hand until combined. Avoid over-mixing, but make sure that all your ingredients are thoroughly combined. 
3. Add a cup of the crushed Oreos to the batter and fold that together until evenly distributed. 
4. Pour the batter into the prepared pan and bake the brownies for 30-35 minutes.
5. While the brownies bake, begin on the frosting. To a large mixing bowl add the softened butter. Using a hand or stand mixer, beat the butter for about 3-5 minutes or until it is a pale yellow color and fluffy. Next, add the powdered sugar to the butter one cup at a time. Beat the mixture together after each cup of powdered sugar is added. Once you’ve added four cups, add the vanilla extract, salt (optional) and 1 tablespoon of heavy whipping cream. Beat that together until combined. If you want a thicker frosting, add more powdered sugar ¼ a cup at a time. If you want a thinner frosting, add more cream 1 tsp at a time. 
6. Check on the brownies right before the baking time is up. If the center of the batter no longer jiggles and a toothpick comes out of the center with a few moist crumbs on it, it is ready to remove from the oven. Set the brownies off to the side to cool completely. Once fully cooled, frost the top of the brownies with the icing, then add the remaining cup of crushed Oreos. Slice into squares, serve and enjoy!

Recipe Tips and Advice

Storage – Store the leftover brownies in an airtight container in the fridge for 3-4 days. 

Equipment – For this recipe you’ll need a few large mixing bowls, a hand or stand mixer, an 8×8 baking dish, parchment paper or aluminum foil, non stick spray, and a spatula. You can use a 9×13 baking dish if you’d prefer, but the brownies will turn out thinner, and the baking time will decrease. So be sure to check on the brownies often, and test using the toothpick method.

Box Mix – If you don’t want to make a homemade brownie batter, that is fine! You can make box mix brownies as directed on the box, fold in a cup of Oreos, bake it and top it with the frosting and more Oreo cookies!

Lets Talk Frosting

These brownies are fantastic with or without the buttercream frosting. You don’t have to make the brownies with the frosting, you can just enjoy them as is. While this buttercream frosting is heavenly, a cream cheese frosting would taste amazing on top of these cookies and cream brownies as well.

Recipe FAQs

More Dessert Recipes To Try

If you’re a brownie person or an Oreo person or both, you’re in luck! There are so many more ways to dress up a brownie and so many things you can do with Oreos. Check out a few more delicious recipes below.

• Brookies
• Buckeye Brownies
• Pecan Pie Brownies
• Andes Mint Brownies
• Oreo Truffles
• No Bake Oreo Cheesecake
• Cosmic Brownies
• M&M Brownies
• Oreo Dirt Cake
• Oreo Stuffed Cookie