Unforgettable Sweet Potato Casserole with Marshmallows That Steals the Show

There’s one dish that never fails to shine on a holiday table—and that’s the comforting, creamy, golden-topped Sweet Potato Casserole with Marshmallows. This classic Southern-inspired side dish brings the perfect balance of sweet, savory, and nostalgic. Whether it’s Thanksgiving, Christmas, or Sunday dinner, this easy casserole wins hearts and satisfies every guest at the table.

With fluffy mashed sweet potatoes, warm spices, a buttery touch, and a layer of toasted marshmallows on top, this recipe is the very definition of comfort food. It’s family-approved, freezer-friendly, and easy enough for first-time cooks. If you love holiday staples like scalloped potatoes or cheesy root vegetable gratin, you’re going to adore this version of sweet potato casserole.

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What Is Sweet Potato Casserole with Marshmallows?

A beloved Thanksgiving tradition, this casserole transforms humble sweet potatoes into a sweet-savory masterpiece. While many versions include a pecan streusel topping, this variation features gooey, golden mini marshmallows—a nod to the version made famous by early 20th-century American cookbooks.

The soft sweet potatoes provide richness, while marshmallows caramelize and form a slightly crisp topping. The result is a contrast of textures and flavors that is nothing short of irresistible. You may have tried recipes from places like Natasha’s Kitchen or seen it featured by Allrecipes, but this one brings the same beloved comfort with foolproof simplicity.

If you enjoy classic sides with a twist, you may also love garlic herb roasted potatoes, carrots, and zucchini as a savory balance to this sweet dish.

Why You’ll Love This Classic Thanksgiving Side Dish

This casserole is more than just a holiday favorite—it’s a make-ahead-friendly, crowd-pleasing masterpiece. Here’s why it deserves a spot on your table:

• Make-ahead magic: Prep the casserole the night before and simply bake before serving.
• Kid-approved: Sweet enough to feel like dessert, but still full of wholesome ingredients.
• Flexible: Can be made with canned or fresh sweet potatoes, and adjusted to taste.
• Freezer-friendly: Store leftovers for quick reheats during busy weeks.

If you’re building a Thanksgiving menu, pair it with baked chicken legs or loaded breakfast hash for a comforting, hearty spread.

Ingredients You’ll Need for Sweet Potato Casserole

This recipe keeps things simple and classic, using pantry staples. Here’s what you need:

• 4 cups mashed cooked sweet potatoes (from about 3–4 medium sweet potatoes)
• ½ cup white sugar
• 2 eggs, beaten
• ½ teaspoon salt
• 4 tablespoons butter, softened
• ½ cup milk
• ½ teaspoon vanilla extract
• 2 cups miniature marshmallows (or enough to cover the top)

Optional additions: a pinch of cinnamon or nutmeg for extra warmth

Want to expand your sweet potato recipe list? Try a savory twist like sweet chili meatballs served alongside a lighter take like this casserole.

Kitchen Equipment Needed

Gather the following kitchen tools to prepare your casserole with ease:

• Large mixing bowl
• Hand mixer or potato masher
• 9×13-inch baking dish
• Measuring cups and spoons
• Spatula or wooden spoon
• Oven

These basic tools are all you need for this and other dishes like vegetarian baked ziti or pumpkin dump cake.

How to Make Sweet Potato Casserole with Marshmallows (Step-by-Step Instructions)

1. Preheat the oven to 350°F (175°C) and lightly grease a 9×13-inch baking dish.
2. Cook and mash the sweet potatoes if starting from fresh. You can also use canned yams—just be sure to drain them well.
3. In a large bowl, combine mashed sweet potatoes, sugar, beaten eggs, salt, softened butter, milk, and vanilla. Mix until smooth and well combined.
4. Spread the mixture evenly into the prepared baking dish.
5. Bake uncovered for 25 to 30 minutes, until heated through and slightly firm.
6. Top with mini marshmallows, spreading them evenly over the surface.
7. Return to the oven and bake for 5–10 minutes more, or until the marshmallows are golden brown and lightly toasted.

Let it cool slightly before serving. For an extra festive twist, serve it alongside pumpkin cheesecake truffles for a show-stopping Thanksgiving table.

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Tips for the Best Sweet Potato Casserole Every Time

• Mash until creamy: You want a smooth, fluffy texture—use a hand mixer if needed.
• Don’t skip the vanilla: It deepens the flavor and complements the marshmallows.
• Add cinnamon or nutmeg: For an extra layer of cozy flavor.
• Use real butter: For richness that margarine just can’t replicate.

Planning multiple sides? This dish fits perfectly with other Thanksgiving food sides like garlicky kale with white beans and lemon.

Variations: How to Customize Your Casserole

Want to give this classic dish your own twist? Here are some delicious variations:

• Add a pecan topping: Mix brown sugar, butter, flour, and chopped pecans for a crunchy streusel topping.
• Make it dairy-free: Use almond milk and vegan butter.
• Go lower sugar: Cut the sugar in half or use maple syrup as a natural sweetener.
• Add citrus: A bit of orange zest brightens up the flavor.

If you’re looking for more creative fall treats, you might also enjoy mini pumpkin pie cups as a post-dinner treat.

Common Mistakes to Avoid

• Using undercooked sweet potatoes: Make sure they’re fully tender before mashing.
• Overbaking with marshmallows: They burn fast! Keep an eye on them.
• Skipping salt: A small amount enhances the natural sweetness.

Want a no-fail dessert to complement your holiday table? Try the light and fluffy strawberry cloud cake for contrast.

Serving Suggestions and Presentation Ideas

Serve this casserole warm in a beautiful white or ceramic dish to highlight the golden marshmallow top. Garnish with a few whole toasted pecans for texture and contrast.

Pair it with other cozy favorites like garlic butter corn with melty cheese or creamy sun-dried tomato vegan pasta for a well-rounded meal.

How to Store and Reheat Sweet Potato Casserole

Refrigerator: Cover and store leftovers for up to 4 days. Reheat in the oven at 300°F until warmed through.

Freezer: Freeze the unbaked sweet potato mixture (without marshmallows) for up to 2 months. Thaw overnight in the fridge, top with marshmallows, and bake as usual.

Love freezer-friendly recipes? You might also like these freezer breakfast sandwiches for busy mornings.

Perfect Pairings for Sweet Potato Casserole

This sweet-savory casserole pairs well with:

• Garlic Parmesan chicken skewers
• Ground turkey and peppers stir-fry
• Apple crisp with oatmeal for dessert
• Cucumber mint agua fresca as a refreshing drink

Want to build an entire meal? Visit the Thanksgiving Dinner category for endless inspiration.

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Frequently Asked Questions

Can I use canned sweet potatoes? Yes, just make sure to drain them before mashing.

Can I make this ahead of time? Absolutely. Prep the base a day ahead and store in the fridge. Add marshmallows and bake before serving.

Can I use large marshmallows? Yes, but chop them into smaller pieces for even coverage.

Can I freeze leftovers? Yes. Cool completely, then freeze in a covered dish for up to 2 months.

How do I reheat it without burning the marshmallows? Reheat at a lower temperature (around 300°F) and cover with foil for the first 15 minutes.

Final Thoughts and Call to Action

This Sweet Potato Casserole with Marshmallows is the kind of dish that brings people back for seconds. It’s rich, warm, nostalgic, and loaded with love in every bite. Whether you’re hosting a big family gathering or keeping things intimate, this recipe delivers comfort and flavor every time.

If you loved this recipe, be sure to share it with friends and subscribe to the blog for more classic and creative holiday dishes. Looking for more ideas? Explore our collection of Thanksgiving appetizer recipes to kick off your holiday meal in style.

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