Sweet Potato Bundt Cake with Marshmallow Frosting: Your Ultimate Holiday Dessert

Embrace the festive spirit with a dessert that beautifully marries classic holiday flavors with an elegant presentation. This Sweet Potato Bundt Cake, generously crowned with fluffy Marshmallow Frosting, is the quintessential centerpiece for your celebratory table. Each slice promises a moist, tender texture, infused with a symphony of warm spices, and reveals a delightful secret: a sweet toasted pecan core that adds an irresistible crunch.

Reinventing a Holiday Classic: Beyond the Traditional Sweet Potato Casserole

For many, the mention of sweet potatoes during the holidays conjures images of the traditional sweet potato casserole, often topped with toasted marshmallows. While a beloved staple in countless households, particularly on my husband’s side of the family, I’ve always found this particular dish to be a curious blend of sweet and savory that, for me, misses the mark. Its overly sweet profile and notable lack of textural contrast have often left me yearning for an alternative that truly elevates the humble sweet potato.

When I host Thanksgiving dinner, I typically veer away from this classic, opting instead for a more sophisticated and palatable side dish, like this new and improved Pecan Streusel Topped Sweet Potato Casserole. It offers a much more balanced flavor and a delightful textural component that satisfies without overwhelming the palate. However, the tradition of marshmallows with sweet potatoes runs deep for some, and it’s a difficult one to break. So, I decided to approach this holiday conundrum from a different angle: transforming a divisive side dish into an undeniably elegant and universally loved dessert.

Why This Sweet Potato Bundt Cake is Your New Holiday Favorite

My culinary mission was clear: create a dessert that respects the sweet potato-marshmallow tradition without succumbing to the textural and sweetness pitfalls of its casserole counterpart. The result is this magnificent Sweet Potato Bundt Cake with Marshmallow Frosting. It’s a show-stopping dessert that promises to impress your holiday guests and convert even the staunchest casserole loyalists. Imagine the surprise and delight on their faces as they discover this innovative and delicious twist on a familiar flavor profile.

This bundt cake takes all the comforting elements of sweet potatoes and warm spices, transforming them into a sophisticated dessert that feels both celebratory and deeply satisfying. It provides the perfect balance of sweetness, a depth of flavor from autumnal spices, and a variety of textures that make every bite an experience. No more questioning the side dish; this bundt cake firmly establishes sweet potato as a star dessert ingredient.

Mastering the Elements: Cake, Frosting, and Caramel Drizzle

The Incredibly Moist Sweet Potato Bundt Cake

The foundation of this extraordinary dessert is a bundt cake that is exceptionally moist and flavorful. Infused with classic fall spices like ginger, cinnamon, cloves, and allspice, it perfectly captures the essence of the season. To elevate this cake from delicious to unforgettable, I incorporated a special layer of toasted Diamond of California Chopped Pecans. These pecans are mixed with brown sugar and cinnamon, then carefully layered into the center of the cake, creating a delightful surprise with every slice. This toasted pecan core doesn’t just add a lovely crunch; it introduces a nutty, caramelized depth that complements the sweet potato beautifully.

The beauty of a bundt cake lies in its elegant simplicity and the ease with which it can be prepared. This recipe ensures a consistently moist crumb, thanks to a thoughtful blend of ingredients, including buttermilk, which adds a subtle tang and contributes significantly to the cake’s tender texture. The warm, aromatic spices permeate every inch of the cake, making it an inviting dessert that fills your home with the delightful scents of the holidays.

Fluffy, Homemade Marshmallow Frosting

To truly embrace the spirit of the traditional sweet potato casserole, a marshmallow topping was essential. However, instead of simply toasting marshmallows, I opted for a homemade marshmallow frosting that is light, airy, and incredibly delicious. This frosting is surprisingly simple to make, requiring only about 10-15 minutes of active preparation. For the absolute best texture and freshness, I highly recommend preparing the marshmallow frosting on the same day you plan to serve the cake. Its cloud-like consistency and delicate sweetness provide the perfect counterpoint to the rich, spiced bundt cake.

Decadent Bourbon Pecan Caramel Drizzle

To further enhance the toasted pecan flavor and add a touch of sophisticated decadence, a bourbon praline caramel sauce is drizzled generously over the frosted cake. This caramel is a game-changer, infusing the dessert with a rich, boozy depth and a subtle nuttiness that takes it to another level. While optional, it’s an added bonus that truly elevates this bundt cake into a gourmet holiday offering. The good news is, this luscious caramel sauce can be prepared in advance, saving you valuable time on your busy holiday. When ready to serve, simply warm it gently in the microwave for a few seconds to achieve the perfect drizzling consistency, either over the entire cake or individually plated slices.

The combination of the warm sweet potato cake, the ethereal marshmallow frosting, and the rich bourbon pecan caramel creates a multi-layered flavor profile that is both comforting and exciting. It’s a symphony of textures—the tender cake, the soft frosting, and the crunchy pecans—that makes each bite memorable.

Make-Ahead Tips and Storage for Stress-Free Entertaining

One of the many benefits of this Sweet Potato Bundt Cake is its adaptability to advance preparation, making holiday entertaining much less stressful. The cake itself can be baked up to three days before you plan to serve it. The key to maintaining its freshness and moisture is to wrap the cooled cake tightly in plastic wrap. For extended freshness, store it in the refrigerator. On the day of serving, simply remove it from the fridge a few hours beforehand to allow it to come to room temperature before frosting and drizzling.

The bourbon pecan caramel sauce is also a fantastic make-ahead component. Prepare it a few days ahead, store it in an airtight container in the refrigerator, and then gently reheat it before serving. The marshmallow frosting, as mentioned, is best made fresh on the day of serving, but its quick preparation time ensures it won’t add any significant last-minute pressure. These make-ahead strategies allow you to enjoy your holiday festivities with delicious homemade dessert ready to impress.

The Ultimate Holiday Showstopper

This Sweet Potato Bundt Cake with Marshmallow Frosting, finished with a luscious Bourbon Pecan Caramel, is more than just a dessert; it’s a statement. It’s a creative and delicious way to honor holiday traditions while introducing a sophisticated new favorite to your family and friends. This dessert is guaranteed to be a showstopper, leaving your guests utterly captivated and perhaps, finally, forgetting all about that classic casserole. Prepare for rave reviews and requests for the recipe!

Sweet Potato Bundt Cake with Marshmallow Frosting

Yield: 8 servings

Cook Time: 1 hr

Prep Time: 20 mins

Total Time: 1 hr 20 mins

Rating: 5 from 4 ratings

Print Recipe
Pin Recipe
Rate Recipe

Ingredients

For the Cake

4 large eggs, at room-temperature
1 cup granulated sugar
1 and 1/3 cup brown sugar, divided
½ cup canola or vegetable oil
½ cup unsalted butter, melted
2 teaspoons vanilla extract
2 cups sweet potato puree
3 cups all-purpose flour
2 teaspoons cinnamon, divided
½ teaspoon ground ginger
⅛ teaspoon allspice
⅛ teaspoon ground cloves
½ teaspoon kosher salt
1 teaspoon baking soda
1 teaspoon baking powder
1 cup buttermilk
½ cup chopped toasted pecans

For the Marshmallow Frosting

3 large egg whites, at room-temperature
¾ cup granulated sugar
¼ teaspoon cream of tartar
⅛ teaspoon kosher or sea salt
1 teaspoon vanilla extract

For the Bourbon Pecan Caramel

1 cup brown sugar
¼ cup evaporated milk or heavy cream
1 tablespoon butter
⅛ teaspoon kosher or sea salt
1 and 1/2 tablespoons bourbon
½ teaspoon vanilla extract
¼ cup chopped toasted pecans

Instructions

For the Cake

Preheat the oven to 350 degrees F. Generously grease and flour a bundt pan.
In the bowl of a stand mixer, beat eggs, granulated sugar, and 1 cup brown sugar at high speed for 3 minutes or until thick and pale. Add oil, melted butter, and vanilla, beating at a low speed until just combined. Add the sweet potato puree, beating until just combined, stopping to scrape down the sides of the bowl.
In a separate bowl, combine flour, cinnamon, ginger, allspice, cloves, baking powder, baking soda, and kosher salt. Whisk to combine.
Gradually add the flour mixture to the egg mixture, alternating with the buttermilk. Beat at a low speed after each addition until just combined.
Prepare the pecan filling by combining the remaining 1/3 cup brown sugar, 1/2 teaspoon cinnamon, and chopped pecans in a small bowl.
Pour half of the batter into the prepared bundt pan. Using a spoon, make a small indentation in the batter. Evenly sprinkle the pecan mixture over the batter. Pour the remaining batter into the pan. Gently tap the baking pan on the counter to remove any air bubbles.
Bake for 50-60 minutes, or until a toothpick inserted into the center comes out clean. Cool in the pan on a wire rack for 30 minutes. Remove from pan and allow to cool fully on the wire rack.
If not serving immediately, wrap the cooled cake tightly in plastic wrap and store in the refrigerator for up to 3 days.

For the Marshmallow Frosting

Add the egg whites, granulated sugar, cream of tartar, and salt to a heat-safe bowl. Set the bowl over a saucepan filled with a few inches of simmering water, making sure the water doesn’t touch the bottom of the bowl.
Heat the mixture, whisking constantly, until the egg whites are warm to the touch and sugar has dissolved, about 5-7 minutes. Ensure the sugar is fully dissolved before removing from the heat; otherwise, the frosting will be grainy.
Remove the bowl from the heat and transfer the mixture to the bowl of a stand mixer fitted with the whisk attachment. Mix on high speed until stiff, glossy peaks form, about 7-9 minutes. Add the vanilla during the last 10 seconds of mixing.
Frost the top of the bundt cake immediately.
Drizzle the bourbon pecan caramel over the cake immediately before serving or drizzle over each individual slice after plating.

For the Bourbon Pecan Caramel

In a small saucepan over medium-low heat, combine the brown sugar, evaporated milk (or heavy cream), butter, and salt.
Bring the mixture to a gentle bubble. Cook, stirring often, until the sauce thickens, about 5-7 minutes.
Remove the saucepan from the heat and stir in the bourbon, vanilla extract, and pecans. The sauce will thicken as it cools.
If not using immediately, transfer the cooled sauce to an airtight container and store in the refrigerator until ready to use. The sauce will stay fresh for up to 7 days. Re-heat in the microwave or on the stovetop before using.

Author: Jennie / One Sweet Mess

Whipping up one of my recipes? I wanna know about it! Snap a photo and tag @onesweetmess / #onesweetmess on Instagram. Seeing your creations come to life makes my day!

Disclosure: Thank you to Diamond Nuts for sponsoring this post. All opinions are 100% my own. Thank you for supporting my site while I work with brands I use and love in my kitchen.