Pisces S'mores Cake

Name: Pisces S'mores Cake
Prep time: 30 min
Cook time: 25 min
Total time: 55 min
Yield: 12 servings
Ingredients: 1 ¾ cups all-purpose flour; ½ cup unsweetened cocoa powder; 1 teaspoon baking soda; ½ teaspoon salt; 1 cup unsalted butter, softened; 1 ½ cups granulated sugar; 3 large eggs; 1 teaspoon vanilla extract; 1 cup buttermilk; 2 cups mini marshmallows; 1 cup heavy cream; 1 teaspoon vanilla extract; 1 ½ cups graham cracker crumbs; ½ cup unsalted butter, melted; ⅓ cup brown sugar; 1 cup chocolate ganache (1 cup chocolate chips melted with ½ cup cream); Extra mini marshmallows for decoration; Graham cracker crumbles for garnish

Highlighted under: Heavenly Dessert Creations

I can't resist a dessert that combines my love for s'mores and cake, and the Pisces S'mores Cake does just that! In bringing together layers of rich chocolate, fluffy marshmallows, and crunchy graham crackers, this cake transforms a campfire classic into a decadent treat perfect for any occasion. The combination of textures and flavors makes it a showstopper on any dessert table, and trust me, once you've tasted it, you will want to share it with friends and family. Let's dive into making this delicious cake and enjoy every bite!

Created by

Tom

Last updated on 2026-01-30T03:31:31.875Z

When I first tried to create the Pisces S'mores Cake, I aimed to replicate the flavors of classic s'mores but in a more sophisticated way. Using a combination of high-quality cocoa powder and real graham cracker crumbs really made a difference in the flavor depth. The secret to ensuring the marshmallow filling doesn't become too sticky is to let it cool slightly before spreading it in the layers!

Throughout my various attempts, I learned that baking the chocolate layers just until a toothpick comes out clean helps to maintain the perfect fudgy texture. If you want a dramatic twist, consider adding a layer of toasted coconut for extra flavor! This cake is a celebration of indulgence and creativity.

Why You'll Love This Recipe
Rich chocolate flavor that satisfies any sweet tooth
Unique blend of textures with fluffy, gooey marshmallow and crunchy graham cracker
Visually stunning centerpiece for any dessert table

Mastering the Cake Layers

For the cake layers, using high-quality cocoa powder can significantly enhance the chocolate's flavor. I recommend Dutch-processed cocoa for a rich, dark hue and a smoother taste. When creaming the butter and sugar, ensure that the mixture is light and fluffy, which should take about 3-5 minutes at medium speed. This aeration is crucial for achieving a tender crumb in your cake.

After the batter is combined, be careful not to overmix it. You want to stop as soon as the flour is incorporated to prevent the gluten from developing too much, which can lead to a dense cake. To ensure even baking, rotate the cake pans halfway through the baking time, especially if your oven has hot spots.

Creating the Perfect Marshmallow Filling

The marshmallow filling provides a light and gooey contrast to the rich chocolate layers. To achieve a truly smooth filling, I recommend using a double boiler when melting the mini marshmallows with cream. This method gives you control over the heat, preventing the marshmallows from seizing or burning. Stir continuously until the mixture is glossy and fully combined.

If you're concerned about the marshmallow filling firming up too much, consider adding a teaspoon of corn syrup during the melting process. This can help maintain a softer texture, making it easier to spread between cake layers and ensuring it stays gooey when chilled.

Ingredients

Cake Layers

1 ¾ cups all-purpose flour
½ cup unsweetened cocoa powder
1 teaspoon baking soda
½ teaspoon salt
1 cup unsalted butter, softened
1 ½ cups granulated sugar
3 large eggs
1 teaspoon vanilla extract
1 cup buttermilk

Marshmallow Filling

2 cups mini marshmallows
1 cup heavy cream
1 teaspoon vanilla extract

Graham Cracker Crust

1 ½ cups graham cracker crumbs
½ cup unsalted butter, melted
⅓ cup brown sugar

For Topping

1 cup chocolate ganache (1 cup chocolate chips melted with ½ cup cream)
Extra mini marshmallows for decoration
Graham cracker crumbles for garnish

Instructions

Prepare Cake Layers

Preheat the oven to 350°F (175°C). Grease and flour three 9-inch round cake pans. In a bowl, mix flour, cocoa powder, baking soda, and salt. In a separate bowl, cream the butter and sugar until fluffy, then add eggs one at a time, followed by vanilla. Gradually mix in the dry ingredients and buttermilk until just combined.

Bake the Cake

Divide the batter evenly among the prepared pans. Bake for 25 minutes or until a toothpick inserted in the center comes out clean. Allow the cakes to cool in pans for 10 minutes, then transfer to wire racks to cool completely.

Make Marshmallow Filling

In a saucepan over medium heat, whisk together the cream and vanilla. Add mini marshmallows, stirring continuously until fully melted and smooth. Let it cool before using.

Prepare Graham Crust

Mix graham cracker crumbs, melted butter, and brown sugar until combined. Press the mixture into the bottom of a 9-inch springform pan to form an even layer. Bake for 10 minutes at 350°F (175°C).

Assemble the Cake

Layer the cooled chocolate cakes with marshmallow filling in between, and place the assembled cake on top of the graham cracker crust. Pour chocolate ganache over the top and allow it to set slightly.

Garnish and Serve

Decorate the top with extra mini marshmallows and sprinkle with crushed graham crackers. Allow the cake to chill for at least 1 hour before slicing. Enjoy your Pisces S'mores Cake!

Pro Tips

For even more flavor, consider toasting the tops of the marshmallows with a kitchen torch before serving. This adds a delicious caramelized note that enhances the s'mores experience.

Graham Cracker Crust Variations

While the traditional graham cracker crust is delicious, there are several variations you can explore to elevate the flavor. For instance, substituting half of the graham cracker crumbs with crushed vanilla wafers or chocolate cookies can add a unique twist. You can also mix in a pinch of cinnamon or nutmeg for a warm spice note that complements the chocolate beautifully.

If you're looking for a gluten-free option, consider using crushed almond flour or gluten-free cookies in place of traditional graham crackers. Just be sure to adjust the amount of butter slightly, as different ingredients can impact how much fat is needed to bind the crust.

Storage and Make-Ahead Tips

This cake can be made ahead of time, which is fantastic for entertaining. You can bake the cake layers a day or two in advance. Once completely cooled, wrap them in plastic wrap and store them in the refrigerator to maintain freshness. The marshmallow filling and graham cracker crust can also be prepared ahead, just assemble the cake on the day you plan to serve it.

If you have leftovers, store the cake in an airtight container in the refrigerator for up to three days. To prevent the marshmallow filling from becoming too firm, let the cake sit at room temperature for about 30 minutes before serving.

Questions About Recipes

→ Can I use store-bought marshmallow fluff instead of making my own?

Yes, store-bought marshmallow fluff can be used as a convenient alternative. Just spread it between the layers!

→ How do I store leftover cake?

Store leftover Pisces S'mores Cake in an airtight container in the refrigerator for up to 3 days.

→ Can I freeze the cake?

You can freeze the cake before adding the toppings. Wrap it tightly and store it in an airtight container for up to 3 months.

→ What can I use instead of buttermilk?

You can substitute buttermilk with a mixture of milk and vinegar or lemon juice. Just let it sit for a few minutes to curdle before using.