This Toasted S’mores Cake is the ultimate birthday cake idea, bringing all the joy of a campfire treat indoors. You’ll create a delicious, show-stopping dessert perfect for any celebration. This cake is surprisingly simple to make and guaranteed to impress.
Key Ingredients & Substitutions:
- Graham Cracker Crumbs: You can use pre-made crumbs or crush your own graham crackers.
- Marshmallows: Large marshmallows work best for toasting. Miniature marshmallows can work in a pinch.
- Chocolate: Good quality milk chocolate or semi-sweet chocolate chips are ideal.
- Cake Mix: A yellow or vanilla cake mix is recommended for simplicity.
Ingredients:
For the Cake:
- 1 box yellow or vanilla cake mix (plus ingredients called for on box, usually eggs, oil, water)
For the Graham Cracker Crust:
- 1 ½ cups graham cracker crumbs
- ¼ cup granulated sugar
- ½ cup unsalted butter, melted
For the Chocolate Ganache:
- 1 cup heavy cream
- 1 ½ cups semi-sweet chocolate chips
For the Toasted Marshmallow Topping:
- 4 cups large marshmallows
How Much Time Will You Need?
- Total Time: 1 hour 30 minutes
- Prep Time: 30 minutes
- Cook Time: 60 minutes
- Servings: 12-16 slices
- Calories per serving: Approximately 450-550 calories
- Tools Needed: 9×13 inch baking pan, mixing bowls, saucepan, whisk, offset spatula or butter knife, kitchen torch (optional)
Step-by-Step Instructions:
1. Prepare Your Cake Pan
You will start by preheating your oven according to your cake mix instructions. Lightly grease and flour a 9×13 inch baking pan, ensuring the cake won’t stick. This small step makes a big difference for easy removal.
2. Make the Graham Cracker Crust
Combine graham cracker crumbs and sugar in a medium bowl. Pour in the melted butter and mix until all crumbs are moistened. Press this mixture firmly into the bottom of your prepared baking pan to form an even crust.
3. Bake the Crust and Cake
Bake the graham cracker crust for 8-10 minutes, or until lightly golden. While the crust bakes, prepare your cake batter according to the package directions. Once the crust is out of the oven, pour the cake batter directly over the warm crust and bake as directed on the cake mix box until a toothpick inserted into the center comes out clean.
4. Prepare the Chocolate Ganache
As your cake cools, make the ganache. Heat the heavy cream in a small saucepan over medium heat until it just begins to simmer. Remove from heat and pour over the chocolate chips in a heatproof bowl. Let it sit for 5 minutes, then whisk until smooth and glossy.
5. Assemble the Cake Layers
Once your cake is completely cool, spread the chocolate ganache evenly over the top. This layer provides a rich, decadent foundation for your marshmallows. Take your time to ensure full coverage.
6. Add and Toast the Marshmallows
Arrange your large marshmallows in a single layer over the chocolate ganache, covering the entire surface. If you have a kitchen torch, toast the marshmallows until golden brown and slightly gooey. If not, place the cake under your broiler for 1-2 minutes, watching carefully to prevent burning, until they are beautifully toasted. This step truly brings the s’mores magic to your birthday cake idea.
Variation Ideas:
- Chocolate Cake Base: Use a chocolate cake mix for an extra rich s’mores experience.
- Mini Chocolate Chips: Sprinkle mini chocolate chips over the ganache before adding marshmallows.
- Cinnamon Graham Crust: Add ½ teaspoon of ground cinnamon to your graham cracker crust mixture.
- Caramel Drizzle: Drizzle with a little caramel sauce after toasting the marshmallows for another layer of flavor.
Storage Instructions:
Store your Toasted S’mores Cake covered at room temperature for up to 2 days. For longer storage, you can refrigerate it for up to 4-5 days. If refrigerated, allow slices to come to room temperature or gently warm for a few seconds in the microwave before serving to soften the marshmallows.
Frequently Asked Questions (FAQ):
Can I make this cake ahead of time?
Yes, you can bake the cake and make the ganache a day in advance. Add and toast the marshmallows just before serving for the best results.
What if I don’t have a kitchen torch?
You can use your oven’s broiler! Watch it very carefully, as marshmallows can burn quickly. Broil for 1-2 minutes until golden.
Can I use gluten-free cake mix?
Absolutely! Just ensure your graham cracker crumbs are also gluten-free to make it a fully gluten-free birthday cake idea.
How do I get clean slices?
For clean slices, allow the cake to chill in the refrigerator for at least 30 minutes before cutting. Use a sharp, non-serrated knife.
Can I use other types of chocolate?
Yes, you can use dark chocolate or a mix of milk and semi-sweet chocolate for your ganache, depending on your preference.
Is this a good birthday cake idea for kids?
Yes, this Toasted S’mores Cake is always a huge hit with kids and adults alike, making it a fantastic and fun birthday cake idea.