Rich and Decadent Biscoff Brownie Cake

This Rich and Decadent Biscoff Brownie Cake takes cookie butter to a whole new level! Get ready for a new favorite cake!

Cake on a cake stand.

Rich and Decadent Biscoff Brownie Cake

My love of Biscoff runs deep! I have a growing list of Biscoff flavored cakes and I don’t see that list shortening any time soon.

Biscoff Recipes

In case you missed these, here are a handful of my Biscoff-inspired desserts:

Woman crumbling cookies on top of a cake.

So yeah, the love of Biscoff is pretty thick over here!

One combination you’ll notice isn’t on that list – Biscoff and chocolate. It’s a combination that’s been on my mind a lot lately and I finally got a chance to create this new cake.

You are going to love the Biscoff cake layers paired with chocolate ganache and a brownie layer.

Slice of cake on a plate.

Brownie Layer

For the brownie layer, I used Ghirardelli Dark Chocolate Brownie Mix. It’s my favorite brownie… and you may remember, I tried about a dozen homemade brownie recipes to see if I could find one I like as much as the box mix. Answer: nope!

But feel free to use your favorite homemade brownie if you have a recipe you love!

Woman holding a slice of cake.

Ingredients You’ll Need for This Cake

Slice of cake on a plate.

How to Make Moist Cake Layers From Scratch

Don’t forget to follow my go-to tips for getting your Biscoff cake layers to rise and bake well:

  • Preheat your oven for 30 minutes prior to baking.
  • Use good quality pans like Fat Daddio.
  • Spray your pans with nonstick spray and line with parchment paper. 
  • Don’t overmix your cake batter once you add the dry ingredients.
  • Use room temperature wet ingredients.
  • Use fresh baking powder.
  • Bake until a toothpick inserted in the center of the cake comes out with a few moist crumbs on it.
Cake on a cake stand.

How to Make Buttercream Frosting

To get a light and fluffy, silky smooth buttercream, make sure you follow my tips: HOW TO MAKE THE BEST BUTTERCREAM

  • Sift your powdered sugar
  • Use slightly cold butter
  • Use heavy whipping cream
  • Beat for 5 minutes
  • Stir by hand

You’ll want to check out the post linked above for more details on each step. This will help make your cookie butter buttercream silky smooth and easily spreadable.

Can’t wait for you to try this Biscoff Brownie Cake! Enjoy!

Similar Recipes You’ll Love

Biscoff Brownie Cake

4.96 from 24 votes
Tender Biscoff cake, dark chocolate brownie, Biscoff buttercream and chocolate ganache.



  • 18 Biscoff or Speculoos Cookies
  • 2 cups plus 2 tablespoons (255 g) all-purpose flour
  • 1 3/4 teaspoons (7 g) baking powder
  • 3/4 teaspoon (3 g) baking soda
  • 3/4 teaspoon (4.2 g) salt
  • 1 cup (2 sticks) (226 g) unsalted butter, at room temperature
  • 2/3 cup (133 g) granulated sugar
  • 1 cup (220 g) brown sugar, packed
  • 4 large or extra large eggs, at room temperature
  • 2 cups ,(480 g) buttermilk at room temperature 


  • 1 box Ghirardelli dark chocolate brownie mix


  • 1 1/2 cups (339 g) unsalted butter, slightly chilled
  • 1 cup (250 g) Biscoff spread
  • 1 teaspoon (4.2 g) vanilla extract
  • 5 cups (625 g) powdered sugar, sifted
  • 1/4 cup (57.75 g) heavy whipping cream 
  • pinch of salt
  • *This buttercream recipe makes enough to fill and cover your cake. If you want to add additional piping, you’ll want to make an extra ½ batch.


  • 1 cup (150 g) dark chocolate chips
  • 1 cup (100 g) heavy whipping cream 


  • 6 Biscoff Cookies



  • Preheat your oven to 325 degrees F. Spray two 8-inch pans with non-stick cooking spray, line the bottoms with parchment and spray again. Set aside.
  • Place the Biscoff cookies in a food processor or blender and pulse until the cookies are finely ground and resemble flour.
  • In a medium-size bowl, combine the Biscoff crumbs, all-purpose flour, baking powder, baking soda, and salt. Whisk until the ingredients are well-blended.
  • In the bowl of a stand mixer fitted the paddle attachment, beat the butter and sugars on medium speed until light and fluffy. Add the eggs, one at a time, beating well after each addition.
  • With the mixer on low speed, add ⅓ of the dry ingredients and mix until combined. Slowly add half of the buttermilk and mix until incorporated. Continue alternating the flour and buttermilk until it has all been incorporated. Scrape down the sides of the bowl and slowly mix for another 20-30 seconds.
  • Divide the batter evenly among your pans and bake for about 35 to 40 minutes. Cool 10 minutes on a wire rack before inverting onto cooling racks to cool completely. 


  • Spray one 8-inch cake pan with nonstick spray, line with parchment paper, and spray again.
  • Following mixing instructions on the box. Bake for 40 to 45 minutes.


  • In a stand mixer fitted with a paddle attachment, beat the butter and Biscoff spread on medium-high speed for about two minutes.
  • With the mixer on low speed, slowly add the sifted powdered sugar until incorporated. Scrape down the sides of the bowl and continue to mix for another minute.
  • Add the vanilla, cream ,and salt and increase the speed to medium-high and beat the frosting for 3 to 5 minutes, until light in color and texture. 


  • Heat the cream in a microwave safe bowl for 60 seconds. Pour the cream over the dark chocolate chips and let sit for five minutes. Stir until smooth. Cool slightly.
  • Best to use the drip on a chilled cake. 


  • Place the first cake layer on a cake board and top with 1 cup buttercream, followed by a generous drizzle of chocolate drip and a handful of Biscoff cookie chunks. Pat into place.
  • Place the brownie layer on top of the filling and repeat the layers of buttercream, ganache, and cookies.
  • Place the second cake layer, top side down, on top of the filling.
  • Apply a thin crumb coat around the cake and chill for 10 minutes in the freezer to set.
  • Finish frosting the cake with the buttercream. Chill for another 10 minutes and apply the drip.
Cuisine Cake
Course Dessert
Keyword biscoff, Biscoff Brownie Cake, Biscoff Cake, Brownie

Courtney Rich

I’m a self-taught baker, obsessed with cake.

I long ago ditched box mixes in pursuit of melt-in-your-mouth, to-die-for flavor combinations, fillings and textures. I believe cake must be decadent, life-changing and worthy of celebration! And I believe anyone should be able to bake that kind of cake – and I’m here to teach you just that!

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Everything you need to know about decorating a cake like a pro!

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Recipe Rating


  1. I cannot wait to make this cake. I have a question – is the drip the ganache? Also you say white chocolate chips in the drip directions but I am assuming this should be dark chocolate. thanks for sharing your recipes

  2. 4 stars
    The sponge is too much for 2 8” cake pans! The measurements are the same as Courtney’s other Biscoff cake which has 3 sponge layers while this one only has 2 8” layers (plus the Brownie layer).

      1. I’m making this but the center is still jiggly after 40 minutes. Any tips to get it cooked without drying out?

        1. I’d double check your internal oven temperature when you can, using an oven thermometer. While baking times will vary depending on our ovens, the bake time shouldn’t be too far off from the recipe. Wondering if your oven is running cool.

  3. 5 stars
    Made this cake for my 11 year olds birthday. It went down very well. It was delicious and recipe very easy to follow. Making another of yours today. The cookies and cream one for my 26 year old son. Thankyou for sharing x

  4. So I’ve only made the cake layers so far… but they baked up almost lacy looking on top, not smooth like other cakes I’ve made, is that how these layers are supposed to turn out? My wet ingredients were all room temperature, I mixed just until combined, and I weighed all my ingredients so I’m not sure what I did wrong. I’m wondering if maybe the cookies in it (I used biscoff cookies) just make the cake a different texture, touching them they feel denser than regular cake layers as well.

  5. 5 stars
    Made this for my friend/co-workers birthday last week. Lots Of compliments!! Was so good the entire staff ate it so before I could sneak a piece.

  6. 5 stars
    I made this for Thanksgiving this year & it was such a hit! I made the layers on Tuesday, made the buttercream & assembled it on Wednesday (then transported it in the car), and on Thursday morning, I made the chocolate ganache and decorated it. It was a labor of love, but I definitely will be making it again 🤩

  7. If baking layers ahead of time (2 days out), will the brownie layer keep covered in the fridge? Or would you leave it at room temp?