5 Sweet Potato Casserole with Marshmallows – Delicious, Creamy, Gooey & Perfect for Holidays

A Classic Comfort Side Dish Everyone Will Love

There’s something magical about Sweet Potato Casserole with Marshmallows. It’s sweet. It’s cozy. It’s the dish that instantly makes a holiday or Sunday dinner feel special. Growing up, this was always the side dish I looked forward to the most. The warm, sweet aroma would fill the kitchen, and that golden, toasted layer of marshmallows on top… well, it was impossible to resist.

Even on busy weeknights, this recipe feels indulgent without being complicated. If you want a dish that’s simple, crowd-pleasing, and comforting, this is it.

Whether you’re making it for Thanksgiving, Christmas, or just because you deserve a little sweetness, this Sweet Potato Casserole with Marshmallows is guaranteed to bring smiles.

Why You’ll Love This Sweet Potato Casserole with Marshmallows

Here’s why this recipe keeps me coming back:

• Sweet and creamy filling with a hint of cinnamon and nutmeg
• Fluffy, perfectly toasted marshmallows on top
• Easy to prepare ahead of time
• Comforting and nostalgic for the whole family
• Perfect for large gatherings or small dinners alike

It’s the ultimate blend of sweet, creamy, and fluffy — a guaranteed winner on any dinner table.

Ingredients for Sweet Potato Casserole with Marshmallows

For the Sweet Potato Base

• 4 cups cooked and mashed sweet potatoes (about 4–5 medium sweet potatoes)
• 1/2 cup granulated sugar
• 1/4 cup unsalted butter, melted
• 1/4 cup milk (or heavy cream for extra richness)
• 2 large eggs
• 1 tsp vanilla extract
• 1/2 tsp salt
• 1/2 tsp ground cinnamon
• 1/4 tsp ground nutmeg

For the Marshmallow Topping

• 2 cups mini marshmallows
• Optional: a sprinkle of cinnamon for garnish

Optional Streusel Topping (for extra crunch)

• 1/2 cup brown sugar
• 1/3 cup all-purpose flour
• 1/3 cup chopped pecans
• 1/4 cup butter, softened

This recipe is flexible — you can do marshmallows alone or add the streusel for extra texture. Both are equally irresistible.

Step-by-Step Instructions for Sweet Potato Casserole with Marshmallows

Step 1: Prepare the Sweet Potatoes

1. Peel and chop sweet potatoes into even chunks.
2. Boil in a large pot of water until tender (about 15–20 minutes).
3. Drain and mash until smooth using a potato masher or electric mixer.

Step 2: Mix the Sweet Potato Filling

1. In a large bowl, combine mashed sweet potatoes, sugar, melted butter, milk, eggs, vanilla, salt, cinnamon, and nutmeg.
2. Stir until smooth and creamy.

Step 3: Transfer to Baking Dish

1. Preheat oven to 350°F (175°C).
2. Grease a 9×13-inch baking dish.
3. Spread the sweet potato mixture evenly in the dish.

Step 4: Optional Streusel Topping

1. In a small bowl, mix brown sugar, flour, and chopped pecans.
2. Cut in softened butter until crumbly.
3. Sprinkle evenly over the sweet potato layer.

Step 5: Add Marshmallows

1. Sprinkle mini marshmallows generously over the top (or over the streusel if using).

Step 6: Bake

1. Bake in preheated oven for 25–30 minutes, or until marshmallows are golden and slightly toasted.
2. Keep an eye on the last few minutes to prevent burning.

Step 7: Serve Warm

• Serve immediately for the perfect gooey marshmallow topping.
• Garnish with a light sprinkle of cinnamon or extra pecans if desired.

Tips for the Best Sweet Potato Casserole with Marshmallows

• Make ahead: You can prepare the sweet potato mixture a day in advance. Cover and refrigerate. Bake with marshmallows just before serving.
• For extra creaminess: Add 2–3 tablespoons of heavy cream when mashing sweet potatoes.
• Even marshmallow browning: Place the casserole under the broiler for 1–2 minutes at the end of baking, watching carefully.
• Texture variety: Combine marshmallows with the streusel topping for sweet and crunchy contrast.
• Sweet potatoes shortcut: Use canned sweet potatoes in a pinch, just make sure they’re drained and mashed.

Variations for Sweet Potato Casserole with Marshmallows

1. Pecan Marshmallow Casserole: Sprinkle chopped pecans between sweet potatoes and marshmallows for extra crunch.
2. Maple Sweet Potato Casserole: Replace half the sugar with pure maple syrup for a deep, rich sweetness.
3. Vegan Option: Use coconut milk instead of dairy, and vegan marshmallows.
4. Spiced Sweet Potato Casserole: Add ginger or cloves to enhance warmth and holiday flavors.

Why This Recipe Is a Crowd-Pleaser

It’s the perfect balance of flavors:

• Sweet but not overly sugary
• Soft, creamy sweet potatoes
• Crispy, toasted marshmallow top
• Optional crunchy pecans for texture

Kids love the marshmallow topping, and adults appreciate the depth of flavor from cinnamon and vanilla. Everyone wins.

Serving Suggestions

• Pair with roasted turkey or chicken for a holiday dinner
• Serve alongside green beans, roasted vegetables, or a crisp salad
• Ideal for potlucks or family gatherings

This casserole can stand alone as a side or even a sweet treat after dinner.

Storage & Reheating

• Refrigerate leftovers for up to 3–4 days
• Reheat in oven at 325°F (160°C) until warmed through
• For best texture, add a few extra marshmallows on top before reheating

Personal Story

Every Thanksgiving, my family gathers in the kitchen while the sweet potato casserole bakes. The smell of cinnamon, nutmeg, and melting marshmallows fills the air. My kids can’t wait to taste the gooey topping, and my parents always comment on how creamy it is. It’s a tradition that makes me feel warm inside — and I love sharing it with you through this recipe.

Frequently Asked Questions

Can I use yams instead of sweet potatoes?
Yes! Just ensure they’re cooked and mashed well.

Do I have to use mini marshmallows?
Mini are best for even coverage and toasting, but large marshmallows work — just cut them into smaller pieces.

Can I make this ahead of time?
Absolutely. Prepare filling a day ahead, store in fridge, and add marshmallows before baking.

How do I prevent marshmallows from burning?
Bake until golden. Broil for the last minute if desired, but watch closely.

Final Thoughts

This Sweet Potato Casserole with Marshmallows is a recipe that brings joy to every table. It’s easy, comforting, and nostalgic. Perfect for holidays, special dinners, or whenever you need a little sweetness in your life.

Don’t forget: the best part is the toasted marshmallow top — soft, gooey, and irresistible.

Share a photo when you make it! I’d love to see how golden and fluffy your marshmallows turn out. ⭐

Pin this recipe for later 📌 and tell me — do you love it with streusel, plain, or extra gooey marshmallows?

Print