Chewy oreo brownie cookies with a crunchy exterior and delicious vanilla buttercream! These cookies are made from a brownie mix and are easy to whip up!
If you like decadent cookie desserts (think Crumbl) you'll love our grasshopper cookies, our galaxy brownie cookies, our Hostess cupcake cookies, or our Reese's peanut butter chocolate cookies!
Watch our step by step video!
Oreo Brownie Cookies
Chewy, chocolatey, and a slight crunch. These oreo brownie cookies are delicious and so easy to make! You can make the dough from scratch using our double chocolate cookie dough recipe which uses cocoa powder and chocolate chips (you would use oreo cookie crumbs instead of chocolate chips and make an extra half batch of frosting), but I really love making these cookies with a brownie box mix. The flavor is delicious and it makes for a chewier cookie!
I like rolling the cookie dough in crushed oreo crumbs right before baking. It creates a crispy outer texture. You DO NOT need to do this though. If you prefer a softer texture, simply scoop the dough and bake it! This recipe makes 20-22 cookies.
Oreo Brownie Cookie Ingredients
Cookie Dough
- 1 box fudge brownie mix (18 oz.)
- ¼ cup melted butter
- 2 large eggs
- 2 Tbsp. milk
- 15 crushed oreo cookies, divided
Vanilla Buttercream Frosting
- ½ cup softened butter (1 stick)
- 3 cups sifted powdered sugar
- 3 Tbsp. milk
- 1 teaspoon vanilla
How To Make Oreo Brownie Cookies
Crushed Oreo Cookies
Crush oreo cookies in a blender or food processor. You'll need 1 cup of crushed cookies for the brownie batter cookie dough and the rest will be used for rolling the cookie dough balls in and sprinkling over the finished cookies.
Whisk dry brownie mix and 1 cup of cookie crumbs together in a mixing bowl. Add melted butter, eggs, milk, and milk. Mix/stir well.
Chill the dough for 30 mins. in the refrigerator.
Scoop cookie dough balls using a medium cookie scoop (2 Tablespoon size) and roll in crushed cookies.
Place cookie dough balls on a parchment paper-lined baking sheet. The cookies will spread slightly so only bake 6-8 cookies per pan.
Bake cookies in the oven at 375 degrees for 10 minutes.
Let cookies cool on the baking sheet 7-10 minutes before transferring them to a wire cooling rack. Allow cookies to cool completely.
Beat vanilla frosting ingredients together using an electric mixer. Spoon frosting over cooled cookies and sprinkle with crushed cookie crumbs. Store cookies in an airtight container or covered in plastic.
Oreo Brownie Cookies Recipe
Oreo Brownie Cookies
Ingredients
Oreo Cookie Dough
- 1 box fudge brownie mix (18 ounce)
- ¼ cup butter ½ stick melted
- 2 large eggs
- 2 Tbsp. milk
- 15 oreo cookies crushed
Vanilla Buttercream Frosting
- ½ cup butter 1 stick softened
- 3 cups powdered sugar sifted
- 3 Tbsp. milk
- 1 teaspoon vanilla extract
Instructions
- Crush oreo cookies in a blender or food processor. You'll need 1 cup for the cookie dough. Save the rest of the crushed cookies for rolling the cookie dough in and sprinkling over the frosting.
- Whisk brownie mix and 1 cup of cookie crumbs together in a mixing bowl. Add melted butter, eggs and milk. Mix well.
- Chill dough for 30 minutes in the fridge.
- Scoop cookie dough using a medium cookie scoop. Roll cookie dough balls in crushed oreo cookies.
- Place cookies on parchment paper lined baking sheets, 6-8 cookies per sheet.
- Bake at 375 degrees for 10 minutes. Allow cookies to cool on baking sheets 7-10 minutes before transferring to wire rack.
- While cookies cook, beat frosting ingredients together using an electric mixer.
- Spoon frosting over cookies then sprinkle cookies with remaining cookie crumbs.
Notes
- You can use unsalted butter, but I use salted butter for all of my baking recipes.
- Store cookies in an airtight container or cover the cookie sheet with plastic wrap to keep cookies fresh.
- Frosting will set up slightly, allowing cookies to be stacked 2 cookies tall.
Nutrition
You might also like our s'mores brownie recipe made with layers of graham crackers, a brownie layer, chocolate bars, and toasted marshmallows!
Jayden says
I baked these not only for myself, but for a group of about 20 other people
every
single
person
LOVED THEM!
Thank you so much for this wonderful recipe!
I would like to know, however, if you have any tips on ways to be more creative with the icing in other recipes, say a basic iced vanilla cookie?
Rocky says
Greetings,
I see in the recipe milk, but I don’t see where in the recipe to place it. Before I refrigerate the dough?
Thank you 😊
Brandy says
I accidentally listed butter twice in the directions. Should be “add melted butter, eggs and milk”. Thanks for letting me know!