S’mores Cake

Cakes & Cupcakes
October 16, 2019
Cakes & Cupcakes
October 16, 2019

S’mores Cake

You all know that I have an itsy bitsy obsession with marshmallow fluff, and this cake is pretty much the

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S’mores Cake

s'mores cake with slice taken out

You all know that I have an itsy bitsy obsession with marshmallow fluff, and this cake is pretty much the cake of my dreams. Anything s’mores flavored I am ALL over it. S’mores macarons, s’mores brownies, s’mores icebox cake…I mean I could eat this flavor combo for the rest of my life.  So it probably come as no surprise that we just had to make a S’mores cake.

DUH. I honestly can’t believe it took us this long to take all those flavors of an ooey gooey s’more into a layer cake. 

s'more cake slice with fork

What’s your favorite party of a s’more? The golden marshmallow? The melty chocolate? The crunchy graham? Well I love them ALL.

Best part about this cake? All three get to shine through in their own individual layer.

head on shot of s'mores cake with toasted marshmallows on top

What is a s’mores cake:

S’mores cake takes the three key components of any good s’more and makes each one into a decadent layer. In case you live under a rock, a s’more is made from toasted marshmallows, chocolate, and two graham crackers sandwiched together. It’s easily one of my favorite flavors combos. You’ll make three separate components and then assemble them.

And I’m going to break it all down for you.

  1. Chocolate Cake: We used our favorite chocolate cake recipe to make the fudgiest, most chocolatey cake we’ve ever had.
  2. Graham Cracker Crumble: You know that buttery goodness traditionally found as the base of a graham cracker? We adapted that into a crumble to sprinkle in between each layer of cake (PSA it is to die for).
  3. Marshmallow Buttercream: Made with marshmallow fluff stirred right into the frosting, this ultra fluffy frosting tastes exactly like a marshmallow

s'mores cake with chocolate cake, marshmallow frosting, and graham cracker crumble with a slice taken out

And damn IT. IS. GOOD.

s'more layer cake AKA fudgy chocolate cake with a marshmallow and graham filling, marshmallow frosting, chocolate ganache, and topped with toasted marshmallows.YUM.

How to assemble s’mores layer cake:

This recipe will make a 2 layer 8 inch cake or a 3 layer 6 inch cake like we made here!

Simply place your first layer on a cake stand and frost the top of it with marshmallow buttercream. Sprinkle with half of the graham cracker crumble. Next, place another layer on top and repeat the process.

Place the last cake layer on top and frost the top and sides of the cake. We topped ours with chocolate ganache and toasted marshmallows but you could do anything!

slice of s'mores cake with fork on a plate

The only thing that could possibly make this s’mores  layer cake better would be serving it with a scoop of Ben and Jerry’s S’mores ice cream.

I thought it was discontinued but a quick google search shows that it’s still in stores and my grocery store stopped selling it. So basically it’s just discontinued for me.

Slice of s’mores Cake

So if you see Ben or Jerry around, please let them know we need them to bring their S’mores ice cream back to my grocery store so that we can eat it with this cake.

That is all.



S’mores Cake

4.7 from 15 reviews


for the cake

for the frosting

  • 1/2 cup unsalted butter, softened
  • 1 1/4 cups powdered sugar
  • 1/2 cup marshmallow fluff
  • 1 teaspoon vanilla extract
  • 1/4 teaspoon salt

for the graham cracker crumble

  • 2 tablespoons unsalted butter, melted
  • 2 tablespoons honey (or sugar!)
  • 1 cup graham cracker crumbs


  1. Prepare the chocolate cake according to directions, baking it in 3 6 inch rounds. Allow the cakes to cool completely before frosting.*
  2. While the cake cools make the frosting and graham cracker crumble. Place the softened butter in the bowl of a stand mixer fitted with the whisk attachment. Beat the butter until smooth. Add the powdered sugar, salt and vanilla and beat until combined. Add the marshmallow fluff and beat until fluffy, about 3 minutes.
  3. To make the graham cracker crumble combine the graham cracker crumbs, melted butter, and honey in a small bowl and stir to combine.
  4. Place one layer of the cake on cake stand or plate. Frost the top of the cake with the marshmallow frosting and sprinkle half of the graham cracker crumble on top. Repeat with the second layer. Frost the top of the third layer and the sides with an offset spatula.


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Recipe rating

  1. When your eight year old asks for a S’mores cake for his birthday, you start searching for a recipe that you feel confident you can nail. This chocolate cake did NOT disappoint! This will be my go-to vegan chocolate cake recipe from this day forward! The frosting is delicious but even doubled the recipe did not yield enough to cover the sides with all three layers. I just left the sides naked and it was still super yummy and really pretty with the graham pieces. I did bake the graham pieces lightly so they added a little textural variation to the cake and sprinkled some on top, too. Thanks for this delicious and achievable recipe. Everyone loved it!

  2. This is the best chocolate cake recipe… Easy moist and delicious ..its what I have been looking for, for a long time..makes great cupcakes too..loved the marshmellow.frosting too the whole thing easy and yummy..my husband doesn’t like chocolate cake normally but he does now

  3. Made this for my daughter’s 10 bday, exactly as pictured with chocolate ganache and torched marshmallows. It looked spectacular! Four stars because in spite of all components, it just tasted sugary. We couldn’t taste the separate components at all like the marshmallow frosting or graham crackers. One slice was plenty…rest went in the freezer..

  4. Thinking about baking the crumble on a cookie sheet beforehand so it hardens a bit like like a graham cracker crust. I wonder if that would prevent it from getting too soggy? Has anyone tried this?

    • You could absolutely do that! I’ve never tried it personally but I bet it would add a great crunchy texture.