This post may contain affiliate links. Please see our full Disclosure Policy for details.
This Mint Oreo Cake makes for one fabulous birthday cake for mint chocolate lovers! Dark chocolate cake and tons of whole Oreos are covered in fluffy mint cookies and cream buttercream, then garnished with chocolate ganache and even more cookies.
I’m coming to you from San Francisco today! I arrived yesterday with my dear friend Lara in tow – here for this week’s big Mediavine Conference. Our conference trips always seem to turn into vacations, so we came a bit early to do touristy things, and will be out here on the west coast through Tuesday. (Watch out, Napa.)
I don’t think I’ll ever get used to this working remotely thing. The fact that I can take almost my entire job with me in one ridiculously handy backpack was something I would have never imagined possible a few years ago. Hell, even one year ago.
This has indeed been one wild and wacky year. And here I am, about to celebrate my 34th turn around the sun (tomorrow!)
This calls for cake – and I’m thinking it should be cookies & cream cake!
JUST TAKE ME TO THE MINT OREO COOKIES AND CREAM CAKE ALREADY!
If you’d rather skip my (pretty darn helpful) tips and tricks, essential cooking info, and similar recipe ideas – and get straight to this deliciously easy Oreo cookie birthday cake recipe, just scroll right on down to the bottom of the page where you can find the printable recipe card!
I’ve noticed in the last year or so that my taste for sweets has changed considerably.
A few years ago, I would have thrown together some over-the-top concoction or cake, icing, chocolate, and probably ice cream or something.
Lately, sweet things are only tolerable in small doses – meaning no more full pints of ice cream, large milkshakes, double servings of fudge brownies.
My waistline will hopefully thank me for it. I know my blood sugar does.
In comparison, this year’s Oreo birthday cake is pretty subtle.
I’d almost call it grown up.
How do you make a Mint Oreo Cake?
Deep dark chocolate cake.
Mint buttercream, light on the powdered sugar and mildly sweetened using the filling from my favorite Oreos.
Rich chocolate ganache, poured, drizzled and piped.
More Oreos. A whole package, actually.
I generally don’t name my recipes after branded ingredients, but this is purely an Oreo cookie cake.
OK, so maybe the hidden mint Oreos inside are a little crazy – and they’re totally optional if they’re too much for you.
But since this is my birthday cake, it sounded like a fun addition. I do love how the cookies and cream buttercream softened them after a day of sitting under a cake dome on the counter.
Everyone knows Oreos are best when dunked in milk to the point of sogginess, right?
Well, this clever layering saves you that step. Winning move, in my opinion. Bite and sip instead.
Happy birthday to meeeee!
LOOKING FOR MORE LAYER CAKE RECIPES?
- Triple Chocolate Cake
- Caramel Martini Chocolate Mousse Cake
- Bourbon Caramel Spice Cake
- Neapolitan Cheesecake
- Raspberry Lemonade Cake
- Italian Cream Cheesecake
HELPFUL KITCHEN TOOLS FOR MAKING MINT OREO CAKE:
Join in on the fun in our Facebook group! Feel free to share YOUR favorite recipes, ask questions, help out your fellow home cooks, and see what’s new with The Crumby Kitchen (so that you never miss a new recipe)! If you’d like to check it out, you can request to join HERE.
Also, don’t forget to follow us on Instagram and tag #crumbykitchen so we can see all the wonderful recipes YOU recreate from this site!
You can also subscribe to our weekly newsletter so you never miss a delicious recipe again!
Mint Oreo Cake
- 1 1/3 cups all-purpose flour
- 1/2 cup Dutch process cocoa powder
- 1 1/2 teaspoons baking soda
- 3/4 teaspoon baking powder
- 1/2 teaspoon kosher salt
- 1/2 cup unsalted butter softened
- 1 1/4 cups granulated sugar
- 2 eggs room temperature
- 1 teaspoon vanilla extract
- 3/4 cup buttermilk
- 1/2 cup hot coffee or water
Mint Oreo Buttercream
- 1 cup unsalted butter softened
- 1 package mint Oreos divided
- 2 1/2-3 cups powdered sugar
- Pinch kosher salt
- 3 tablespoon heavy cream
- 1 1/2-2 teaspoons mint extract
- 1 teaspoon vanilla extract
- Green food coloring
- Chocolate ganache for decorating
- Preheat oven to 350 degrees F. Grease 3 6-inch cake pans and line with a round of parchment. Grease the parchment then set aside.
- In a bowl, whisk together dry ingredients and set aside.
- In a separate bowl, cream butter and sugar with a mixer for 2-3 minutes until combined. Add eggs, vanilla, and buttermilk and mix until well combined. Sift dry ingredients into wet and beat until just combined. Mix in the hot coffee in on low speed, beating well.
- Divide batter evenly between pans, then bake for 30-35 minutes until a toothpick inserted in the center comes out clean.
- Cool in pans for 5 minutes, then transfer to a rack to cool completely. Chill in the refrigerator until ready to assemble.
Mint Oreo Buttercream
- Separate 12 of the Oreo cookie from the cream; place the cream in a bowl. Place the cookies in a zipper bag or food processor and crush them coarsely. Set aside.
- In a mixer, cream butter on medium-high speed 4-5 minutes until fluffy. Add the reserved Oreo cream, about two cups of powdered sugar, and a pinch of salt. Mix on low until incorporated, then increase speed to medium. Taste and add additional powdered sugar as desired.
- Add cream, extracts, and food coloring and mix on low speed until incorporated. Increase speed to medium-high and whip 5-6 minutes until fluffy. Fold 3/4 of the crushed Oreo cookies into icing.
- To assemble, place one layer of cake on a cake board or serving plate. Spread a thin layer of buttercream on top, place 7 Oreos on top, then spread another thin layer of buttercream on those. Repeat with the following layer. of cake Set the third cake layer on top, then cover the entire cake in remaining buttercream.
- Cover the top of the cake in warm chocolate ganache, then allow it to drip down the sides, helping it along with a spoon or offset spatula.
- Pipe stiff ganache rosettes all around the outer edge of the top of the cake, with one in the middle. Arrange remaining 6 Oreos on top of the cake. Use remaining Oreo crumbs to garnish the base of the cake.
PIN THIS MINT OREO BIRTHDAY CAKE RECIPE FOR LATER!