Pistachio Cookie Cake

I’m so happy to share this easy, great tasting cake with you. Back when Oreo came out with a new flavored cookie called Oreo Thins Pistachio flavor, I just knew I had to throw some into a cake. So here you go: Pistachio Cookie Cake.

Pistachio Cookie Cake

I saw the bag for the new flavor of Oreo Thins – Pistachio, and it reminded me of an old recipe I had. This old recipe used chunks of cookie in the cake batter, which is so cool to bite into. Here’s a beautifully moist cake with a crunch of cookie in it. HEAVEN!

White cake mix and bag of Oreo Pistachio Thins.

Let’s Bake a Pistachio Cookie Cake

Start with a white cake mix and add the ingredients it calls for on the box (water, oil, eggs). Then roughly chop about 14 Oreo Thins Pistachio cookies, and add them to the cake mix.

Bake the cake as directed on the box, sit back and smell the wonderful aroma that fills the kitchen.

Pistachio Cookie Cake

Time to Decorate

After the Pistachio Cookie Cake has thoroughly cooled, it’s time to frost it and decorate.

I tend to like a little bit of cake with my frosting, so when I make frosting, I make a lot. I knew I’d also want to decorate, and you need a lot of frosting for that.

Frosting tip: keep the frosting on the thinner side when frosting the sides, top and middle of the cake. Then, thicken the frosting up when decorating, depending on what you’re planning on doing.

My usual go-to piping tip is a Wilton’s 1M, which I used on this particular cake in the photos.


Pistachio Cookie Cake

Hiding imperfections.

While frosting a cake, I seem to struggle the most with the sides. I have no idea why. But since this is my weak spot, my new favorite way to decorate a cake now is to simply throw either cake crumbs or chopped up cookies on the sides.

It’s a wonderful way to hide the imperfections.

As seen in the photo above, I used about 10 cookies for the sides. I chopped them up a little smaller than the chunks I put into the cake.

Piece of white cake with Oreo cookie chunks mixed in.

Somehow I still had cookies left in the bag even though I’d been munching along quite a bit. I cut about 8 cookies in half and stuck them on the top.

I added some green gel food coloring to the remaining frosting to compliment the green filling in the Pistachio cookie.

It also happens to be coming up on St. Patrick’s Day, so the green was a win-win.

White frosting on a dessert using Oreo cookies.

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5 from 10 votes

Pistachio Cookie Cake

A moist white cake with added Oreo Pistachio cookie chunks on the inside, a vanilla/almond buttercream frosting with more cookies on the outside.
Prep Time10 minutes
Cook Time34 minutes
Cooling time30 minutes
Total Time44 minutes
Course: Dessert
Cuisine: American
Keyword: Pistachio, St. Patrick's Day
Servings: 12 pieces
Calories: 957kcal
Author: Sweet Ordeal


The Cake

  • 1 box white cake mix (like Betty Crocker Super Moist)
  • 1 1/4 cup water
  • 1/3 cup vegetable oil
  • 3 eggs
  • 1 1/4 cup Oreo Thins - Pistachio, (approx. 14) roughly chopped

The Frosting

  • 1 cup butter
  • 1/2 cup Crisco
  • 6 cups confectioners sugar
  • 8-10 tsp. water
  • 1 tsp. vanilla extract
  • 1 tsp. almond extract


  • For the cake: make the cake batter according to directions on the box, then add the cookie chunks. Bake in 2 -  8" or 9" round baking pans. (NOTE: you can also bake as cupcakes or in a 13 x 9 baking dish, follow directions on box for baking times.)
  • Allow cake to thoroughly cool before frosting.
  • For the frosting: beat the butter and Crisco until thoroughly mixed. Add confectioners sugar 2 cups at a time, adding some of the water between batches until you reach desired consistency. Add the extracts. 
  • Frost middle, sides, and top of cake. This recipe allows for extra for decorating purposes.
  • OPTIONAL: chop 10 cookies to use on the side of the cake and cut approx. 8 cookies in half for the top of the cake between dollops of frosting. 
  • Enjoy!


Calories: 957kcal
Tried this recipe?Mention @sweetordeal or tag #sweetordeal!

Looking for more dessert ideas? Try my French Toast Cupcakes or my St. Patrick’s Day Puddin’ Filled Cupcakes.

Also, my German Apple Cheesecake is wonderful, and my Chunky Peanut Butter Brownie Bars are always a hit.

Don’t forget to save a Pin to your Pinterest board…here are some great sizes.

Oreos decorating a white and pistachio-green dessert.Piece of white cake with dark chunks of Oreo cookie mixed in.Copyright © Sweet Ordeal. All content and images are copyright protected. Do not use any images without prior permission. If you want to republish this recipe, make sure to re-write the recipe in your own words and only list ingredients making sure to link back to this post for the original recipe and directions.

5 from 10 votes (9 ratings without comment)

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