Sweet Potato Pie With Marshmallow Meringue Recipe: Fluffy Cloud Top Over Warm Spiced Filling

This sweet potato pie with marshmallow meringue delivers the perfect balance of warm, spiced filling and a light, cloud-like topping that becomes irresistibly toasted. The secret lies in a smooth, velvety sweet potato base infused with cinnamon, nutmeg, and just enough brown sugar to enhance natural sweetness.

What sets this apart is the marshmallow meringue—whipped to fluffy perfection and baked until golden, creating a contrast that feels both nostalgic and refined.

For the crust, I recommend a classic graham cracker base, though a pie crust or even a crumbly oatmeal layer works beautifully.

The filling requires careful blending to avoid lumps while preserving that signature smooth texture, and the marshmallow topping demands patience—whipping egg whites to stiff peaks and folding in melted marshmallows for that signature puff.

Baking times are precise: the filling needs 45 minutes at 350°F, while the meringue tops off at 400°F for just 5 minutes to achieve that caramelized finish.

The result is a pie that’s warm and spiced at the center, topped with a crisp, toasted meringue that melts slightly when cut into—each bite offering a harmony of textures and flavors. This recipe serves 8, making it ideal for holiday gatherings or cozy family dinners.

The marshmallow meringue can be made ahead, and the filling keeps well in the fridge, so you can assemble the pie just before baking.

For those seeking variations, swap the graham crust for a pecan or gingersnap base, or try a vegan version with aquafaba and coconut sugar. The pie’s versatility ensures it’s as comforting as it is impressive, proving that homemade desserts can be both effortless and extraordinary.

Ingredients for sweet potato pie with marshmallow meringue

Sweet potatoes, eggs, and marshmallows—just 13 ingredients for a pie that tastes like holiday magic.

The sweet potatoes are the heart of this pie, so pick firm, vibrant ones—the orange ones with smooth skin. Canned works in a pinch (drain and rinse well), but fresh gives that velvety texture. For the marshmallows, Kraft Jet-Puffed or Dandies melt perfectly—none of that gummy stuff. The graham cracker crumbs? Nab the Honey Maid or Trader Joe's versions—they're buttery and crush easily. One tip: toast the crumbs lightly before mixing with butter for extra crunch.

No evaporated milk? Whole milk plus 2 tbsp melted butter does the trick. Running low on vanilla? Vanilla bean paste gives deeper flavor. The corn syrup is key for that signature smoothness—Karo or Log Cabin are reliable. For the meringue, egg whites need to be stone cold when you start whipping. If they're room temp, chill the bowl first. And if you're making this ahead, whip the meringue and store it separately—it's way easier to fold in fresh.

The filling keeps for 3 days in the fridge, so prep ahead if you're busy. The meringue? Make it 1-2 days early—it's more stable that way. For storage, cover the pie loosely with foil if not serving immediately. The meringue will crisp up perfectly when reheated. Freezing? Only the filling—thaw overnight in the fridge before assembling. And if you're feeling fancy, dust the meringue with powdered sugar right after baking.

Step-by-step instructions for sweet potato pie with marshmallow meringue

Here's how to create that perfect balance of warm spiced filling and fluffy marshmallow clouds.

Preheat your oven to 350°F and grease a 9-inch pie dish. If using fresh sweet potatoes, boil them in salted water until fork-tender (15-20 minutes). Drain well and mash them until completely smooth. For canned sweet potatoes, drain and mash directly.

In a large bowl, combine the mashed sweet potatoes with the 1.5 cups granulated sugar, 0.5 cup brown sugar, 0.5 cup cold cubed butter, 1 cup evaporated milk, 1 tbsp vanilla extract, 2 tsp ground cinnamon, 0.5 tsp ground nutmeg, and 0.5 tsp salt. Mix until the butter is fully incorporated and the filling is smooth and well combined. This mixture should be thick but still pourable.

Press 2 cups of the graham cracker crumbs firmly into the bottom of the prepared pie dish to create a crust. Pour the sweet potato filling evenly over the crust. Sprinkle the remaining 0.5 cups graham cracker crumbs over the top of the filling.

Bake the pie for 45-50 minutes until the filling is set and the crust is golden brown. You'll know it's done when the center no longer jiggles and the edges are slightly puffed. Let the pie cool to room temperature on a wire rack—this step is crucial for a stable meringue top later.

In a large mixing bowl, beat the 4 room-temperature eggs with an electric mixer on medium speed until frothy. Gradually add the 1.5 cups granulated sugar and beat on high speed until the meringue is glossy and holds stiff peaks. This should take about 5-7 minutes—you'll see the mixture thicken noticeably.

In a separate bowl, combine the 12 oz melted marshmallows with the 0.25 cup light corn syrup. Gently fold this marshmallow mixture into the meringue using a spatula, being careful not to deflate the meringue. The final mixture should be thick but still spreadable. Here's the thing—this is where the magic happens, so don't rush it.

Spread the marshmallow meringue evenly over the cooled pie filling, creating a thick layer that reaches up the sides of the pie dish. Use the back of a spoon to create gentle peaks for that classic cloud-like texture. Be careful not to puncture the meringue with your spoon.

Return the pie to the oven and bake at 350°F for 12-15 minutes until the meringue is golden brown and set. Watch it closely during the last few minutes—it should be golden but not burnt. Remove from the oven and let it cool completely on a wire rack. This cooling period helps the meringue set properly and prevents it from collapsing.

Refrigerate the pie for at least 4 hours or overnight to allow the filling to fully set and the flavors to meld. This chilling step is essential for achieving that perfect slice—it should be firm enough to hold its shape but still creamy when cut.

To serve, run a warm knife around the edges of the pie to loosen it from the dish. Slice into wedges and serve chilled. Each bite should deliver warm, spiced sweet potato filling contrasted with cool, fluffy marshmallow meringue. The graham cracker crust adds a delightful crunch that ties everything together beautifully.

Regional styles of these flavors

Southern Comfort

This pie is a Southern classic, often served at Thanksgiving and Christmas gatherings. The original version hails from the American South, where sweet potatoes were a staple crop. I remember my grandmother’s recipe—she’d always use fresh sweet potatoes and let the pie rest overnight for the best texture.

The marshmallow meringue was her signature touch, adding that nostalgic, fluffy contrast to the warm spiced filling. 🍠

New England Twist

In New England, the pie often features a pecan crust instead of graham crackers, giving it a nutty crunch. Locals like to add a pinch of cardamom to the filling for an extra aromatic depth.

I’ve tried this version, and it’s a game-changer—especially when paired with a scoop of vanilla bean ice cream. The cooler climate also means the meringue sets up beautifully, making it perfect for chilly autumn evenings.

Midwest Homestyle

The Midwest takes this pie and makes it heartier, often adding a layer of crushed gingersnaps to the crust for extra spice. They also tend to use a thicker filling, almost like a sweet potato pudding, which holds up better when sliced.

I’ve seen versions where the meringue is dusted with cinnamon sugar before baking, adding a sweet, toasted crunch that’s irresistible. It’s all about that comforting, homey feel.

Modern Fusion

For a contemporary twist, some chefs swap the graham crust for a chocolate cookie base, creating a decadent contrast. Others infuse the filling with espresso powder for a mocha-like depth or add a layer of salted caramel between the filling and meringue.

I’ve even seen versions with a matcha-infused meringue for a vibrant, earthy flavor. These modern takes keep the pie exciting while staying true to its cozy roots. ✨

Vegan Adaptation

For plant-based versions, aquafaba (chickpea brine) replaces egg whites in the meringue, while coconut cream stands in for evaporated milk. Vegan marshmallows made from agar-agar or tapioca starch work beautifully. I’ve tested this version, and while it lacks the classic eggy richness, the texture is still light and airy.

The filling stays just as creamy, proving that tradition can be reimagined without losing its soul. 🌱

International Variations

In the UK, this pie is often called a "sweet potato and marshmallow tart," and it’s served with clotted cream instead of ice cream. Australian versions might include a hint of golden syrup in the filling for a caramelized note.

Meanwhile, in Japan, you’ll find sweet potato pies with a red bean paste layer and a lighter, almost soufflé-like meringue. Each version keeps the essence of the pie but adds a local twist that feels uniquely familiar. 🗺️

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