The Ultimate S’mores Bundt Cake: A Swirled Summer Dream

As the golden days of summer begin to gently wane, signaling the impending embrace of autumn, there’s a natural inclination to savor every last moment of sunshine and warmth. For many, the unofficial end of summer, marked by holidays like Labor Day here in the US, sparks a desire to indulge in classic seasonal treats one last time. This spectacular S’mores Bundt Cake arrived at just the right moment, offering the perfect culinary farewell to what has been, for me, an incredibly bustling and eventful season.

Summer often conjures images of endless relaxation, leisurely afternoons, and spontaneous adventures. However, this past season presented its own unique set of challenges and commitments, leaving little room for the usual unwinding or, surprisingly, much time for baking—one of my true passions. While I didn’t get to check off every item on my summer bucket list, I find solace in knowing that I was fully present for my family, friends, and loved ones during a crucial period. Life, after all, is a beautiful tapestry woven with seasons of varying demands, and I believe there will always be more summers, more opportunities to create those cherished baking memories.

Discovering the Magic of a S’mores Bundt

Amidst the whirlwind, I was fortunate enough to carve out time for one truly inspiring baking project: this incredible S’mores Bundt Cake. Have you ever encountered a recipe that instantly captures your imagination, compelling you to drop everything and head straight to the kitchen? This was precisely my experience with this masterpiece. As a confessed Bundt cake enthusiast (it’s no secret!), I proudly joined Bake from Scratch’s Bundt of the Month club earlier this year. Their August recipe landed in my inbox on a Thursday, and by Friday night, I was deep in preparation. The visual appeal was undeniable, but the concept itself—a S’mores cake featuring a marbled chocolate and graham cracker batter, baked in my beloved Nordic Ware Heritage Bundt Pan—sounded utterly unique and irresistible. It was a baking adventure I simply couldn’t postpone.

The Quintessential Taste of Summer in Every Slice

Every element of this S’mores Bundt Cake wholeheartedly celebrates the quintessential flavors of summer. From the moment you taste the rich, subtly sweet graham cracker batter, to the luxurious addition of cocoa powder that transforms half of that batter into a deep chocolate counterpart, culminating in the golden, toasted marshmallows that crown this magnificent creation, it’s a sensory journey. Just like the iconic campfire treat, this cake delivers the irresistible trinity of honey-infused graham crackers, luscious sweet chocolate, and delightfully gooey marshmallows. It’s a truly incredible dessert, one that is absolutely worth every minute spent crafting it. And let’s not forget that decadent chocolate ganache, drizzled generously over the top, which adds an extra layer of pure bliss.

What makes a Bundt cake so appealing? Beyond its stunning appearance, the unique fluted design creates more crust surface, leading to a delightful textural contrast. The intricate grooves also provide perfect channels for glazes and toppings, ensuring every bite is infused with flavor. A well-made Bundt cake is a testament to both elegance and comfort, and this S’mores version truly elevates the form, offering a sophisticated take on a rustic favorite.

Baking Tips for Your Perfect S’mores Bundt Cake

Creating a beautiful Bundt cake doesn’t have to be intimidating. With a few key tips, you’ll be baking like a pro in no time. The secret to a successful Bundt often lies in proper pan preparation and ingredient temperatures. Always ensure your butter and eggs are at room temperature for optimal creaming and emulsification, resulting in a lighter, more tender crumb. When greasing your Bundt pan, don’t skimp! A generous coating of baking spray (the kind with flour) or a thorough butter-and-flour dusting will save you from the heartbreak of a stuck cake. Freezing the greased pan briefly also adds an extra layer of non-stick security, allowing the batter to cling less to the cold metal during baking.

The swirling technique for this S’mores Bundt Cake is easier than it looks. By piping the two batters alternatively into the pan’s grooves, you create those stunning marbled layers that are as appealing to the eye as they are to the palate. Don’t worry about perfection; a slight imperfection adds to the rustic charm of a homemade cake. And for the grand finale – toasting the marshmallows – a kitchen torch is your best friend. It provides that signature golden-brown char and gooey texture without the need for a campfire, bringing the authentic S’mores experience right to your dessert table.

Whether you’re celebrating the last vestiges of summer, hosting a cozy gathering, or simply craving a taste of nostalgia, this S’mores Bundt Cake is guaranteed to be a showstopper. It combines the playful essence of a childhood favorite with the sophisticated presentation of a beautifully baked Bundt, making it a dessert that appeals to all ages. Get ready to impress your friends and family with this unforgettable treat!

Yield: 1 12-cup Bundt Cake

S’mores Bundt Cake

A sweet S’mores Bundt Cake that swirls graham cracker and chocolate batter in one pan, topped with toasted marshmallows and a rich chocolate ganache. Perfect for summer gatherings or a nostalgic treat!

Prep Time
40 minutes

Cook Time
50 minutes

Cooling Time
2 hours

Total Time
3 hours 30 minutes

Ingredients

1 ½ cup unsalted butter, softened at room temperature
2 2/3 cups granulated sugar
6 large eggs, at room temperature
2 ¼ cups cake flour, sifted
⅔ cup finely ground graham cracker crumbs
1 ½ teaspoon kosher salt
½ teaspoon baking soda
1 cup whole buttermilk, at room temperature
2 tablespoons pure vanilla extract
¼ cup black cocoa powder (or regular unsweetened cocoa for a milder chocolate)
½ teaspoon espresso powder (enhances chocolate flavor)

Milk Chocolate Ganache:

6 ounces milk chocolate bars, chopped
⅓ cup heavy whipping cream

Toppings:

Large marshmallows
Garnish: broken milk chocolate bars, roughly crushed graham crackers

Instructions

Prepare the Pan: Preheat oven to 325 degrees F (160 C). Generously grease a 12-cup Bundt pan with baking spray (the kind with flour) or butter and flour. Freeze the prepared pan for about 20 minutes while you prepare the batter. This helps prevent sticking.
Cream Butter and Sugar: In the bowl of a stand mixer fitted with the paddle attachment, cream the softened butter and granulated sugar on medium speed until the mixture is light and fluffy, about 5-6 minutes.
Add Eggs: Add the eggs one at a time, mixing well after each addition. Be sure to scrape down the sides of the bowl as needed to ensure everything is well incorporated.
Combine Dry and Wet Ingredients: In a separate medium bowl, whisk together the sifted cake flour, finely ground graham cracker crumbs, kosher salt, and baking soda. In another small bowl, whisk together the buttermilk and pure vanilla extract.
Alternate Additions: Reduce the mixer speed to low. Alternately add the flour mixture and the buttermilk mixture to the wet ingredients, beginning and ending with the flour. Beat until just combined after each addition, being careful not to overmix.
Create Chocolate Batter: Transfer about 4 cups of the plain batter to a separate medium bowl. Add the black cocoa powder and espresso powder to this portion. Fold gently until the cocoa and espresso are well combined, creating a rich chocolate batter.
Pipe the Batters: Spoon about 1 cup of the black (chocolate) batter into a large piping bag and snip off the tip. Repeat with 1 cup of the plain (graham cracker) batter into another large piping bag, also snipping the tip. Into the cold, prepared Bundt pan, alternately pipe the two batters directly into the grooves, filling to within ¾ inch of the top of the center tube and the outside rim. Use an offset spatula to carefully spread the batter into the grooves and up the sides of the pan. Continue to alternately pipe and spread more batter into each groove, closing any gaps between the batters for a distinct swirl.
Finish Piping and Settle Batter: Refill the piping bags with the remaining batters and repeat the layering process until all the batter is used. Gently tap the pan on the counter several times to help the batter settle into the grooves and release any trapped air bubbles.
Bake and Cool Cake: Bake the cake for approximately 45-50 minutes, or until a cake tester inserted into the center comes out clean. Let the cake cool in the pan on a wire rack for 10 minutes. After 10 minutes, carefully loosen the sides of the cake from the pan’s center tube and outer rim. Invert the cake onto a wire rack and let it cool completely before glazing and decorating, which typically takes at least 2 hours.
Make the Ganache: To prepare the milk chocolate ganache, warm the heavy cream in a microwave-safe bowl until it’s hot and simmering, but not boiling. Pour the hot heavy cream over the chopped milk chocolate in a medium heatproof bowl. Let it sit undisturbed for 1-2 minutes to allow the chocolate to melt. Then, stir gently with a whisk or spatula until the ganache is completely smooth and glossy. Use immediately.
Assemble and Serve: Once the cake is completely cool, transfer it to a serving plate. Place the warm milk chocolate ganache into a large piping bag with a large round tip (or simply drizzle with a spoon). Carefully pipe the ganache into the grooves of the cooled cake. Fill the center of the Bundt cake with large marshmallows. Using a kitchen torch, carefully toast the marshmallows until they are golden brown and slightly gooey. Garnish the cake with additional broken milk chocolate bars and roughly crushed graham crackers for an authentic S’mores presentation. Serve immediately and enjoy!

Notes

This recipe is adapted from a delightful S’mores Swirl Bundt Cake recipe by Bake from Scratch.
For the best swirl effect, avoid mixing the batters too much once they are in the pan. The piping method helps maintain distinct layers.
If you don’t have black cocoa powder, regular unsweetened cocoa powder can be used, though the chocolate batter’s color will be lighter.
A good quality Bundt pan, like the Nordic Ware Heritage Bundt Pan mentioned, truly helps with the intricate design.
Store leftover cake at room temperature in an airtight container for up to 3 days, or refrigerate for longer freshness.

Made this Delicious Cake?

We’d love to see your creations! Share your S’mores Bundt Cake on Instagram using the hashtag #aclassictwist so we can admire what you’re baking up in your kitchen!

Irresistible S’mores Bundt Cake