Every bite of this decadent s'mores cake is incredible. Graham cracker flavored cake, with chocolate ganache and a creamy marshmallow buttercream frosting. You will be hooked after the first taste!
I can't wait to share with you how you can make one your very own luscious summer cakes! I provide you with photos, video, and easy to follow instructions so you can easily replicate it.
If you love this graham cracker cake recipe, you should check out my extraordinary s'mores cookie bars.
Why This Cake Recipe Works:
- The flavor combination of the chocolate ganache, buttercream frosting, and moist cake is out of this world.
- It's ideal for birthdays, holidays, and other events.
- No one can resist the incredible texture and deliciousness.
- You can make this s'mores layer cake any season.
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How To Make This Graham Cracker Cake Recipe
FIRST STEP: Preheat oven to 350°F (175°C). Line the bottom and the sides of two 8" baking pans with parchment paper and set aside.
Graham Cracker Crust Directions
SECOND STEP: In a large mixing bowl, stir together graham cracker crumbs, sugar, and melted butter just until combined and evenly moist.
THIRD STEP: Divide in half and transfer to the prepared baking pans. Press the crumbs with the back of a flat-bottomed cup into the bottom of the pan evenly. Bake for 10 minutes. Set aside.
Graham Cracker Cake Directions
FOURTH STEP: Stir graham cracker crumbs, flour, baking powder, and salt in a medium-sized bowl to combine. Set aside.
FIFTH STEP: In a large mixing bowl, using an electric mixer fitted with a paddle or whisk attachment beat butter, oil, and sugar on medium speed until creamy and combined for about 2 minutes.
SIXTH STEP: Add one egg at the time and mix just to combine after every egg. Mix in vanilla to combine.
SEVENTH STEP: Alternately stir in dry ingredients and milk. Begin and end with dry ingredients.
EIGHTH STEP: Divide the batter into the two prepared baking pans equally. Bake for about 36-41 minutes or until a toothpick in the middle comes out clean. Let cool to room temperature.
Marshmallow Buttercream Directions
NINTH STEP: In a large mixing bowl, using an electric mixer, whisk butter on medium speed until fluffy for about 2 minutes.
TENTH STEP: Mix in powdered sugar until smooth and combined.
ELEVENTH STEP: Add marshmallow fluff and mix until combined. Add salt to taste (if desired). Set aside.
Chocolate Fudge Sauce Directions
TWELFTH STEP: Place the chopped chocolate bars, sweetened condensed milk, and heavy cream in a heat-proof bowl and microwave for about 2 minutes until it has the typical chocolate fudge sauce consistency. Stir every 20 seconds that the chocolate doesn't get too fast too hot.
Assembly Directions
THIRTEENTH STEP: Cut a thin layer off the tops of your cakes to create a flat surface if needed. Then cut each cake in half horizontally. Place one cake layer on a cake stand, turner, or serving plate.
FOURTEENTH STEP: Spread 1/4 of the marshmallow frosting over the cake. The icing should be higher around the edges that it holds the chocolate fudge sauce inside the cake (watch the video for better understanding).
Spoon about 4-5 tbsp of chocolate fudge sauce on top where the buttercream is lower and spread evenly. Repeat two more times.
FIFTEENTH STEP: Place last cake layer on top and lightly frost the outside and the sides of the cake with the remaining frosting. Spoon the glaze little by little around the sides and let it drip off the sides.
Do this with a small spoon and do one drip at the time. Then spoon or pour the rest of the glaze on top of the cake (maybe you don't need all) and level with an offset spatula. Chill 4 hours in the fridge.
SIXTEENTH STEP: Before serving, decorate with meringue, marshmallows, graham crackers, and chocolate to your preference — store leftovers in an airtight container in the fridge up to 3 days.
Baker's Tips
- When baking this s'mores layer cake, always use the freshest ingredients.
- Use butter that has been at room temperature for best results.
- Don't overbake the graham cracker cake.
- Do not overmix the cake batter or crust mixture.
- Use high-quality chocolate because you will get the best tasting and texture.
- Make sure to chill the cake for 4 hours in the fridge before serving.
Substitutions
What Is A Good Substitute For Milk?
If you aren't able to consume milk for one reason or another or simply don't have any on hand, you can still make this s'mores dessert. Simply substitute the regular milk for any of the following: almond milk, soy milk, coconut milk, or cashew milk.
Frequently Asked Questions And Answers
What Ingredient Makes Cakes Moist?
Oil and milk are the two ingredients that keep any of your summer cakes moist. If you bake a cake without some kind of oil or milk, there is a good chance it will end up dry and dense. Using substitutes is fine, but you definitely need a liquid to help with the moisture.
Why Are My Cakes So Dense?
If you bake this s'mores dessert or any other cake and end up with a dense cake, there could be a few reasons. Overmixing, adding too many dry ingredients or tossing all the wet and dry ingredients together in one bowl is usually your culprit.
It's important to follow the directions exactly as well as the measurements for the ingredients. Overmixing is a battle many face, and it causes air bubbles to form then pop when it's baked. This results in a very dry cake.
How Long Does This S'mores Cake Last And How Do I Store It?
This ultimate s'mores cake will last up to 3 days in the refrigerator. It's essential to keep it stored in an airtight container. This will keep it fresh and prevent it from taking on other flavors in the fridge.
Can This S'mores Dessert Recipe Be Frozen?
Yes, you can freeze this s'mores dessert. I recommend if you are planning to make this cake ahead of time and freezing it, then I would not decorate the top with marshmallows. They do not tend to freeze well, and their texture would be off a little.
Other than the marshmallows on top, you can make and decorate the cake as you planned. Then cut it into individual pieces and wrap in foil or plastic wrap. After they are appropriately wrapped, add them to a freezer safe container and grab a piece when you want one.
If you are freezing the entire cake intact, simply wrap the whole thing, put in an airtight container and freeze. To thaw the cake, place in the refrigerator overnight.
If you try this S'mores Cake recipe leave a comment, rate it and tag a photo #alsothecrumbsplease on Instagram! Would love to see your snap!
Craving more S'mores Recipes?
Unbelievably delicious S'mores Cake
Ingredients
Graham Cracker Crust
- 2 cups graham cracker crumbs, spooned and leveled (240g)
- 1/4 cup granulated white sugar (50g)
- 6 tbsp unsalted butter, melted (85g)
Graham Cracker Cake
- 1 1/2 cups graham cracker crumbs, spooned and leveled (180g)
- 1 1/2 cups all-purpose flour, spooned and leveled (180g)
- 1 tbsp baking powder
- 1/2 tsp salt
- 1/2 cup unsalted butter, room temperature (113g)
- 1/2 cup mild flavored vegetable or canola oil (120ml)
- 1 1/2 cups packed light brown sugar (300g)
- 3 large eggs
- 2 tsp vanilla extract
- 1 1/2 cups milk (360ml)
Marshmallow buttercream
- 1 1/2 cups unsalted butter, room temperature (340g)
- 3 cups powdered sugar, sifted (360g)
- 14 oz marshmallow fluff (2 jars / 400g)
- pinch of salt (to taste)
Chocolate fudge sauce
- 1 1/2 cups semi-sweet chocolate bars, finely chopped (261g)
- 9 oz sweetened condensed milk (255g)
- 3/4 cup heavy cream (180ml)
Instructions
- Preheat oven to 350°F (175°C). Line the bottom and the sides of two 8" baking pans with parchment paper and set aside.
Graham Cracker Crust
- In a large mixing bowl stir together graham cracker crumbs, sugar, and melted butter just until combined and evenly moist. Divide in half and transfer to the prepared baking pans. Press the crumbs with the back of a flat-bottomed cup into the bottom of the pan evenly. Bake for 10 minutes. Set aside.
Graham Cracker Cake
- Stir graham cracker crumbs, flour, baking powder, and salt in a medium-sized bowl to combine. Set aside.
- In a large mixing bowl, using an electric mixer fitted with a paddle or whisk attachment beat butter, oil, and sugar on medium speed until creamy and combined for about 2 minutes.
- Add one egg at the time and mix just to combine after every egg. Mix in vanilla to combine. Alternately stir in dry ingredients and milk. Begin and end with dry ingredients.
- Divide the batter into the two prepared baking pans equally. Bake for about 36-41 minutes or until a toothpick in the middle comes out clean. Let cool to room temperature.
Marshmallow Buttercream
- In a large mixing bowl, using an electric mixer, whisk butter on medium speed until fluffy for about 2 minutes. Mix in powdered sugar until smooth and combined. Add marshmallow fluff and mix until combined. Add salt to taste (if desired). Set aside.
Chocolate Fudge Sauce
- Place the chopped chocolate bars, sweetened condensed milk, and heavy cream in a heat-proof bowl and microwave for about 2 minutes until it has the typical chocolate fudge sauce consistency. Stir every 20 seconds that the chocolate doesn't get too fast too hot.
Assembling
- Cut a thin layer off the tops of your cakes to create a flat surface if needed. Then cut each cake in half horizontally. Place one cake layer on a cake stand, turner or serving plate.
- Spread 1/4 of the marshmallow frosting over the cake. The frosting should be higher around the edges that it holds the chocolate fudge sauce inside the cake (watch the video and photos for better understanding). Spoon about 4-5 tbsp of chocolate fudge sauce on top where the buttercream is lower and spread evenly. Repeat two more times.
- Place last cake layer on top and lightly frost the outside and the sides of the cake with the remaining frosting. Spoon the glaze little by little around the sides and let it drip off the sides. Do this with a small spoon and do one drip at the time. Then spoon or pour the rest of the glaze on top of the cake (maybe you don't need all) and level with an offset spatula. Chill 4 hours in the fridge.
- Before serving, decorate with meringue, marshmallows, graham crackers, and chocolate to your preference. Store leftovers in an airtight container in the fridge up to 3 days.
Video
Notes
- When baking this s'mores layer cake, always use the freshest ingredients.
- Use butter that has been at room temperature for best results.
- Don't overbake the graham cracker cake.
- Do not overmix the cake batter or crust mixture.
- Use high-quality chocolate because you will get the best tasting and texture.
- Make sure to chill the cake for 4 hours in the fridge before serving.
Hi my cakes are in the oven right now!!! Thanks you for the easy to follow instructions. . My only question is... Where do you put the 2nd cake bottom with the graham cracker crust? From the photo it looks like you've flipped it and it becomes the top layer.. Is this correct? Thanks for creating this decadent cake that will surely become the standard Birthday cake for all time in my family.
Hi Karin, Yes, I flipped it and it became the top layer. So basically the graham cracker rust is at the bottom of the bottom layer and at the top of the top layer. Hope that helps. I'm glad you found the recipe easy to follow.
I made this for my BF for V-day and it was delicious! I did not have parchment paper but I greased and floured both pans well, let the cakes cool in pans on a rack for 10 minutes, then ran a knife around the edges and inverted onto racks and they came right out, no sticking. Word of warning though: I did not let the chocolate sauce or the cakes cool *completely* before assembling--they were very slightly warm still- and when assembled one layer split and the cakes started to slide and the whole thing ended up being lopsided 🙁 Next time I will def wait longer before assembling. .
Thank you so much for sharing your experience with us. It's indeed very important that you give it time to cool down. I hope it turns out perfectly the next time.
Amazing cake! Totally moist, flavorful & scrumptious! It was a hit on Thanksgiving since my family is not big on pies. I did omit the bottom graham layer.
Thanks again for answering my questions so promptly.
Gotcha, thanks again! Will sure to post a review. Happy Thanksgiving!!
You are very welcome! Have the best Thanksgiving with your family!
Thanks for quick reply. So I assume the the sweetened condensed milk should be weighed in fluid ounces and the chocolate should be weighed in solid ounces? Sorry, don't want to mess this up, making for Thanksgiving.
Oh, I’m sorry I didn’t point that out exactly. Please measure the condensed milk and the chocolate as solid oz. The grams of the chocolate equal 9.21 oz. Happy Thanksgiving!
These gram measurements are confusing. Sweetened condensed milk does not come in 9 oz cans, how do I convert? Also, the chocolate does not equate to ounces evenly. How many ounces do you use?
You need to measure 9oz with a kitchen scale. The same is true for the chocolate. I provided the exact grams and cups.
I made this today 🙂 My graham cracker crumb was a little crumbly it was a challenge to frost it. But overall, this is a very good cake! I am doing it again. Thank you for the recipe.
This looks delicious, my son has requested it for his birthday. I was wondering about Marshmallow fluff, I am not sure we can buy it in Australia. Any suggestions. Thanks.
In case you don't get any marshmallow creme in the store, you can carefully heat 16 large marshmallows and 2 tsp light corn syrup in the top of a double boiler. This yields 1 cup of marshmallow creme. Hopefully, that helps!
Wow looks amazing! Will be my desert this weekend! Just one question;the graham cracker flour is it graham crackers that you put the robot to have a fine texture?
Thank you so much, Andie! I put the graham crackers into a food processor and grind them into fine crumbs. The texture should be almost like flour. Happy baking!
This cake looks amazing!! You perfectly capture s'mores in cake. It's stunning! I have to try it! Pinning.
Thank you so much, Thao! Enjoy it! 🙂