Sweet Potato Marshmallow Casserole Recipe

I absolutely love sharing this Sweet Potato Marshmallow Casserole Recipe because it’s such a comforting, nostalgic dish that always brings smiles around the table. Whether it’s holiday season or a cozy weekend dinner, this casserole feels like a warm hug in food form. You’ll find that the combination of caramelized sweet potatoes and toasted marshmallows hits the perfect sweet-and-savory note everyone craves.

When I first tried this recipe, I was amazed at how easy it was to make something that tastes so indulgent without a ton of fuss. The best part? It’s incredibly forgiving and customizable—perfect if you’re new to sweet potato dishes or just want a guaranteed crowd-pleaser. If you’re looking for a classic side that feels both special and downright delicious, your search for the perfect Sweet Potato Marshmallow Casserole Recipe ends here!

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Ingredients You’ll Need

Each ingredient plays an essential role in building that perfect balance of creamy, sweet, and toasty flavors. I always recommend fresh sweet potatoes for the best natural sweetness and texture in this Sweet Potato Marshmallow Casserole Recipe.

• Sweet potatoes: Opt for firm, smooth-skinned varieties that will bake evenly and mash well.
• Granulated sugar: Adds just the right sweetness to complement the natural potato flavor.
• Unsalted butter: Melting it brings richness without overpowering the dish—plus, you control the salt perfectly.
• Milk: Helps keep the mashed potatoes creamy and smooth, so the texture isn’t dry or crumbly.
• Eggs: Acts as a binder to hold the casserole together after baking.
• Vanilla extract: A subtle, warm flavor kick that enhances the sweetness and rounds out the dish.
• Salt: Balances the sweetness and highlights the natural flavors.
• Mini marshmallows: The crowning touch – toasted just right to get that golden, gooey topping you’ll love.

Variations

One thing I love about this Sweet Potato Marshmallow Casserole Recipe is how easy it is to personalize. Depending on your preferences or dietary needs, you can tweak ingredients without losing that cozy, comforting spirit.

• Nutty Crunch: I sometimes sprinkle chopped pecans or walnuts on top just before adding marshmallows for a delightful texture contrast.
• Dairy-free version: Swap out butter and milk for plant-based alternatives like coconut oil and almond milk—just as delicious but allergy-friendly.
• Spiced Up: Adding a dash of cinnamon or nutmeg to the mash adds a warm, cozy note that pairs perfectly with the marshmallows.

How to Make Sweet Potato Marshmallow Casserole Recipe

Step 1: Roast Your Sweet Potatoes

First things first, preheat your oven to 400°F. I like to line a sheet pan with foil for easy cleanup and place whole sweet potatoes on it. Prick them with a fork a few times so steam can escape while they bake. Depending on their size, bake for 40 to 50 minutes. You’ll know they’re ready when the skins start to collapse slightly and a fork goes in easily—that’s a sign they’re perfectly soft inside.

Step 2: Mix Your Ingredients

Lower your oven temperature to 350°F and let those baked sweet potatoes cool for about 20 minutes—this makes them easier to handle. While they’re cooling, whisk together the sugar, melted butter, milk, vanilla, and salt in a mixing bowl. Once cooled, peel the sweet potatoes (I like to use my fingers or a small knife) and add the flesh to that bowl. Mash everything together then stir in your eggs until the mixture is smooth and uniform.

Step 3: Bake the Casserole Base

Transfer your sweet potato mixture into a small 20-ounce baking dish—this recipe is perfect for that size. Pop it into the oven for about 20 minutes to let the flavors meld and the eggs set. You’ll notice the mixture becomes firmer but still creamy, which is exactly what you want at this stage.

Step 4: Add Marshmallows and Finish Baking

Remove the casserole from the oven and scatter mini marshmallows on top. Then, bake again for another 5 to 10 minutes, watching closely until those marshmallows toast to a beautiful golden brown. The smell alone is enough to get everyone excited! Serve immediately for that perfect melty, fluffy topping.

How to Serve Sweet Potato Marshmallow Casserole Recipe

Garnishes

I love topping this casserole with a few extra toasty marshmallows for presentation, or sometimes a light sprinkle of chopped pecans to add crunch and a nutty aroma. A light dusting of cinnamon can also add a cozy aroma and a pop of color that makes it look even more inviting.

Side Dishes

My family usually pairs this casserole with a savory roast—like turkey or ham—plus some green vegetable sides like sautéed green beans or roasted Brussels sprouts. The sweetness from this recipe complements saltier mains perfectly and balances your plate.

Creative Ways to Present

For special occasions, I sometimes bake this casserole in individual ramekins—it feels extra fancy and perfect for guests. Another fun trick is layering the sweet potato mash and marshmallows in a glass baking dish, so your guests can see those golden marshmallows on top as they bake, building excitement.

Make Ahead and Storage

Storing Leftovers

After enjoying your Sweet Potato Marshmallow Casserole Recipe, wrap leftovers tightly and store them in the refrigerator for up to 2 days. I always recommend covering the casserole to keep it moist and prevent the marshmallows from drying out or getting sticky.

Freezing

Freezing works well if you prepare the casserole base (through step 4) without the marshmallows. Freeze it in an airtight container for up to 3 months. When ready, thaw overnight in the fridge before baking and adding fresh marshmallows on top.

Reheating

I reheat leftover casserole in a 350°F oven for about 20-30 minutes until warmed through. Then I add fresh mini marshmallows on top and bake for an additional 5-10 minutes to restore that signature golden, gooey top. Microwave tends to make the marshmallows rubbery, so I avoid that method.

FAQs

Final Thoughts

This Sweet Potato Marshmallow Casserole Recipe has become a heartfelt tradition in my kitchen—there’s really nothing like that golden, toasted marshmallow topping paired with the creamy sweet potatoes underneath. I hope you’ll give it a try and experience the same cozy feelings I do when I serve it. Trust me, whether it’s the holidays or a casual Sunday dinner, this casserole will bring warmth and smiles to your table every time.

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