Name: Sweet Potato Casserole With Marshmallows Recipe
Prep time: 20 min
Cook time: 1 h 5 min
Total time: 1 h 25 min
Cuisine: American
Ingredients: 3 pounds sweet potatoes; 4 tablespoons butter (melted); 2 large eggs; ½ cup heavy cream; ¼ cup brown sugar; 1 teaspoon vanilla extract; ½ teaspoon salt; ¼ teaspoon nutmeg; ½ cup all-purpose flour; ½ cup brown sugar; 4 tablespoons cold butter (cubed); 1 cup chopped pecans; ¼ teaspoon salt; 2 cups mini marshmallows

↓ Jump to Recipe

If you’re on the hunt for a comforting, festive dish that feels like a warm hug on a plate, this Sweet Potato Casserole With Marshmallows Recipe is exactly what you need. It beautifully balances the natural sweetness and creamy texture of roasted sweet potatoes with a crunchy, buttery pecan topping, all crowned by soft, golden marshmallows melted to perfection. Whether it’s for a holiday feast or a cozy family dinner, this casserole brings together simple ingredients that transform into a delightful celebration of flavors and textures that everyone will love.

Ingredients You'll Need

The image shows several ingredients arranged neatly on a white marbled surface. There are two whole sweet potatoes, one cut in half showing its orange inside. A white bowl holds small white marshmallows in the center. Surrounding it are a small wooden dish with coarse salt, a round white bowl with flour, a white plate with melted butter, a small white bowl with brown sugar, a small white bowl with chopped pecans, a small white bowl with dark syrup, a small pink bowl with light brown sugar, a small white bowl with cream, and one white egg placed on the surface. A round metal plate holds cubes of butter near the top left. Each item is clearly separated and well lit. photo taken with an iphone --ar 4:5 --v 7

Gathering your ingredients for this dish is wonderfully straightforward, yet each one plays an essential role in building layers of flavor and texture. From the richness of butter to the cozy spices and crunchy pecans, every element contributes to making this casserole irresistible.

Sweet potatoes (3 pounds): The star of the dish, these bring a natural sweetness and creamy base when roasted and mashed.

Butter (4 tablespoons melted + 4 tablespoons cold, cubed): Adds richness to the casserole and creates a tender, crumbly topping.
Large eggs (2): Bind everything together, giving the casserole a smooth, custard-like texture.
Heavy cream (½ cup): Enhances the silkiness of the sweet potato mixture, making it extra luscious.

Brown sugar (¼ cup + ½ cup for topping): Brings a caramel-like sweetness that complements the sweet potatoes perfectly.
Vanilla extract (1 teaspoon): Adds depth and a warm note to the sweet potato filling.
Salt (½ teaspoon + ¼ teaspoon for topping): Balances all the sweetness and highlights the flavors beautifully.

Nutmeg (¼ teaspoon): Offers a subtle earthiness and festive spice to the casserole.
All-purpose flour (½ cup): Helps create the crumbly texture in the topping, blending with butter and sugar.
Chopped pecans (1 cup): Provides a satisfying crunch and nutty flavor contrast.

Mini marshmallows (2 cups): The iconic finishing touch that melts and browns delightfully to top the casserole.

How to Make Sweet Potato Casserole With Marshmallows Recipe

Step 1: Roast the Sweet Potatoes

Start by preheating your oven to 400°F. Pierce each sweet potato a few times with a fork, then roast them for 45 to 60 minutes until they are perfectly tender when pierced with a knife. This roasting method intensifies their natural sweetness and softens them just enough to mash smoothly. Once done, allow them to cool slightly before peeling and mashing, ensuring a creamy foundation for our casserole.

Step 2: Prepare the Baking Dish

Reduce your oven temperature to 350°F while you get the casserole ready. Lightly butter a 9×13-inch baking dish—this will prevent sticking and add a bit of richness to the bottom crust.

Step 3: Mix the Sweet Potato Filling

In a large bowl, combine the mashed sweet potatoes with the heavy cream, melted butter, eggs, brown sugar, vanilla extract, salt, and nutmeg. Mix everything together until the blend is smooth and velvety. The eggs and cream work together to give your casserole that perfect, custard-like softness, while the brown sugar and vanilla infuse sweetness and warmth.

Step 4: Make the Pecan Topping

For the topping, whisk together flour, brown sugar, and salt in a separate bowl. Cut in the cold cubed butter until the mixture has a crumbly texture that looks like coarse crumbs. Toss in the chopped pecans and stir gently so they’re evenly distributed. This topping will bake into a golden, buttery crunch — an irresistible contrast to the velvety sweet potatoes.

Step 5: Assemble and Bake

Spoon the sweet potato mixture into your prepared baking dish and spread it evenly. Sprinkle the pecan topping all over the surface. Bake for 20 minutes to let the flavors meld and the topping start to turn golden.

Step 6: Add Marshmallows and Finish Baking

Remove the casserole from the oven and carefully scatter the mini marshmallows evenly across the top. Return the dish to the oven and bake for an additional 5 to 10 minutes until the marshmallows are puffed and beautifully golden brown. This finishing step adds a sticky, sweet layer that is absolutely iconic to this Sweet Potato Casserole With Marshmallows Recipe.

How to Serve Sweet Potato Casserole With Marshmallows Recipe

A round pie with three visible layers: the bottom crust is golden brown and flaky with some burnt edges; the middle layer is a bright orange, smooth pumpkin filling; the top layer consists of small toasted marshmallows that are light brown on top and white underneath, slightly melted and spread across the surface. The pie has a section missing, showing the inside layers and moist texture. The pie sits on a white marbled surface, and the dish is inside a clear glass pie plate. photo taken with an iphone --ar 4:5 --v 7

Garnishes

While the casserole is wonderful on its own, sprinkling a few extra chopped pecans or a light dusting of ground cinnamon on top just before serving can elevate the dish visually and flavor-wise. Freshly grated nutmeg also adds a lovely aromatic touch if you want to punch up the spice notes slightly.

Side Dishes

This casserole pairs beautifully with roasted turkey or chicken and a crisp green salad to balance out the richness. It also complements any savory mains featuring herbs or garlic, making it a versatile star for holiday spreads or any special occasion meals.

Creative Ways to Present

For intimate gatherings, try baking individual servings in ramekins topped with marshmallows and pecans for a cute personal touch. Or serve the casserole alongside a bowl of whipped cream flavored with a splash of vanilla for a playful sweet-savory combo.

Make Ahead and Storage

Storing Leftovers

After enjoying your delicious Sweet Potato Casserole With Marshmallows Recipe, store any leftovers in an airtight container in the refrigerator for up to 3 days. Covering it well prevents the marshmallows from drying out and keeps the casserole moist and tasty.

Freezing

The sweet potato mixture (before adding the marshmallows) freezes well if you want to prepare in advance. Place it in a freezer-safe container, and it will keep for up to 2 months. When ready to use, thaw overnight in the fridge and then prepare the topping and marshmallows fresh before baking.

Reheating

Reheat leftover casserole in a 350°F oven covered with foil to keep the moisture in, for about 15-20 minutes, or until heated through. For best results, add fresh marshmallows on top during reheating to recover that signature gooey, golden finish.

FAQs

Can I make this Sweet Potato Casserole With Marshmallows Recipe vegan?

Absolutely! To make it vegan, substitute butter with plant-based margarine, use a flaxseed or chia seed egg alternative, and swap heavy cream for coconut cream or another creamy plant-based option. Vegan marshmallows are also available at many stores.

What can I do if I don’t have pecans?

If pecans aren’t an option, walnuts or almonds work well as substitutes and offer a similar crunch. You could even omit nuts entirely for a nut-free version, but the crunchy topping really makes the casserole special.

Is it necessary to roast the sweet potatoes whole?

While roasting whole sweet potatoes enhances the flavor by concentrating their natural sugars, you can peel and cube them before boiling as a quicker alternative. Just be sure to drain thoroughly before mashing to avoid excess moisture.

How do I prevent marshmallows from burning?

Keep a close eye during the final baking stage, as marshmallows can go from golden to burnt quickly. Bake just until browned and puffy, and feel free to tent with foil if they start to brown too fast but the casserole isn’t fully heated through.

Can I prepare the casserole completely ahead of time?

You can prepare the sweet potato mixture and pecan topping in advance and refrigerate them separately. Assemble, add marshmallows, and bake just before serving for the freshest presentation and texture.

Final Thoughts

This Sweet Potato Casserole With Marshmallows Recipe is truly one of those dishes that brings people together and adds a little magic to any meal. From the fragrant roasting of sweet potatoes to the crunchy topping and the perfectly toasted marshmallow finish, it’s a dish that feels special every time. Give it a try, and watch it become a beloved tradition in your home too!

Sweet Potato Casserole With Marshmallows Recipe

Ingredients You'll Need