Oh, the holidays! There’s nothing quite like gathering around the table with loved ones, and for me, a big part of that comfort comes from the food. This Sweet Potato Casserole with Marshmallows is an absolute showstopper, a dish that just screams ‘festive feast’! I’ve made countless versions over the years, tweaking and tasting until I landed on this one. It’s just *so* creamy, perfectly sweet, and topped with those gooey, golden marshmallows. Trust me, this is the one you’ll want to make again and again.
Why This Sweet Potato Casserole with Marshmallows Stands Out
Okay, so there are a bunch of sweet potato casserole recipes out there, but what makes THIS one the best? For starters, it’s ridiculously easy to whip up, even if you’re short on time. Plus, it hits all those classic flavor notes everyone loves – that perfect balance of creamy, sweet potato goodness and that irresistible marshmallow topping. It’s a guaranteed winner for any gathering!
A Timeless Holiday Favorite
This dish is pure comfort food, a true staple that brings back all the warm fuzzies. Whenever I make it, it just feels like the holidays have officially arrived. It’s the kind of side that makes everyone happy and feels so special, especially when shared with family and friends.
Simple Ingredients, Incredible Flavor
You don’t need fancy stuff for this recipe! It uses basic, everyday pantry items to create something truly delicious. The sweet potatoes blend up so smooth and creamy, and the touch of cinnamon and vanilla just makes everything sing. And who can resist those bubbly, golden marshmallows on top?
Gathering Your Sweet Potato Casserole Ingredients
Alright, let’s get down to business with what you’ll need for this amazing Sweet Potato Casserole with Marshmallows. We’re keeping it simple here, using ingredients you probably already have! First up, you’ll need about 4 cups of mashed sweet potatoes. If you’re using fresh ones, grab about 4 large ones, peel ’em, cook ’em until they’re super tender (boiling or baking works!), and then mash ’em up. If you’re in a pinch, canned sweet potatoes or even canned yams work great! Just make sure to drain them really well before you mash them up. Then, we’ve got half a cup of butter, melted. Make sure it’s cooled just a touch so it doesn’t scramble those eggs we’ll add later. Oh, and half a cup of granulated sugar for that perfect sweetness.
Core Sweet Potato Mixture Ingredients
The heart of this casserole is, of course, those lovely mashed sweet potatoes. We’ll mix them with half a cup of melted butter for richness, half a cup of sugar to balance out any earthiness, and a quarter cup of milk to make it all smooth and creamy. Don’t forget two large eggs, whisked up, to bind it all together perfectly.
The Sweet Topping Essentials
Now for the best part – the topping! You’ll need about 2 cups of mini marshmallows. They just melt and get all gooey and golden brown. It’s pure magic!
Flavor Enhancers
To really make this dish sing, we’re adding a splash of vanilla extract (1 teaspoon) and a pinch of salt to bring out all those flavors. And of course, a little cinnamon (1/4 teaspoon) to give it that warm, cozy holiday hug.
Crafting the Perfect Sweet Potato Casserole with Marshmallows

Alright, let’s get this deliciousness baked! First things first, go ahead and preheat your oven to 350°F (175°C). It’s important to get that oven nice and hot so everything bakes up perfectly. Now, for the sweet potato base, grab a big ol’ bowl. Toss in your mashed sweet potatoes, that half cup of melted butter, granulated sugar, milk, and those two beaten eggs. Add in your vanilla extract, salt, and cinnamon too. Give it all a really good mix until it’s smooth and creamy. No lumps allowed!
Preparing the Sweet Potato Base
Seriously, just stir everything together until it’s beautifully combined. You want it to be a nice, smooth, consistent mixture. This is where all those yummy flavors start to meld together. Make sure you don’t have any big pockets of egg or butter; a good stir makes all the difference for that creamy texture we’re going for. Pour this lovely mixture into your greased 9×13 inch baking dish. Spread it out evenly so it bakes up nice and uniform.
Baking the Casserole Base
Pop that dish into your preheated oven and let it bake for about 20 to 25 minutes. You’ll know it’s ready when the center looks set and it’s not super jiggly anymore. It’s just getting warmed through and ready for its grand finale!
Achieving Golden Marshmallow Perfection
Okay, the moment of truth! Carefully take the casserole out of the oven. Now, sprinkle those 2 cups of mini marshmallows evenly all over the top. Get them right to the edges! Pop it back into the oven for another 5 to 10 minutes. Keep a close eye on it – you want those marshmallows to get puffy and beautifully golden brown, but they can go from perfect to burnt in a flash! If you want them a little darker, you can carefully pop it under the broiler for a minute or two, but seriously, *watch it like a hawk*. They toast up super fast under there. Once they’re looking amazing, take it out and let it sit for a few minutes before serving. It’s going to smell heavenly!

Tips for the Best Sweet Potato Casserole with Marshmallows
Want to make sure your casserole is absolutely perfect? Here are a few little secrets I’ve picked up over the years. It’s all about those small details that make a big difference, turning a good dish into the best Sweet Potato Casserole ever!
Sweet Potato Preparation Techniques
If you’re using fresh sweet potatoes, make sure they’re really tender before you mash them – boiling or baking them works great. And if you’re using canned ones, like for a quick Canned Sweet Potato Casserole, drain them really, really well. Nobody wants a watery casserole!
Achieving the Ideal Texture
For that super creamy consistency, don’t overmix once you add the eggs! You want it smooth, but overbeating can make it a bit gummy. Also, if it seems a little too thick, a tiny splash more milk can work wonders. Too thin? A little more mashed sweet potato should do the trick. It’s all about finding that perfect balance.
Marshmallow Topping Tricks
When you add the marshmallows, spread them out evenly so you get that gorgeous, golden crust all over. And seriously, keep an eye on them when they’re under the broiler – they go from beautifully toasted to burnt faster than you can say “happy holidays”! A quick peek every 30 seconds is your best friend.
Frequently Asked Questions About Sweet Potato Casserole with Marshmallows
Can I use canned sweet potatoes or yams for this recipe?
Absolutely! Using canned sweet potatoes or yams is a fantastic shortcut for a quick Canned Sweet Potato Casserole. Just be sure to drain them really well before mashing them up. You might need to mash them a little more to get them smooth, but they work like a charm!
How do I prevent the marshmallows from burning?
The trick to perfectly golden marshmallows is to keep a super close eye on them! They toast up fast, especially under the broiler. Watch them constantly, and if they start to get too dark too quickly, just pull the casserole out. You can also lower the oven rack a bit.
Can this Sweet Potato Casserole with Marshmallows be made ahead of time?
Yes, you can totally prep this ahead! Mix up the sweet potato base and pour it into your baking dish, but hold off on the marshmallows. Cover it tightly and refrigerate. When you’re ready to bake, add the marshmallows and bake as usual, adding a few extra minutes if needed since it’s starting cold.

Nutritional Estimate for Sweet Potato Casserole with Marshmallows
Just so you know, these numbers are estimates and can change a bit depending on the exact brands you use and how generous you are with your servings! On average, one serving of this delicious casserole has about 350 calories. You’ll find around 15g of fat, 3g of protein, 55g of carbohydrates, and about 45g of sugar. It’s a treat, for sure!
Sharing Your Sweet Potato Casserole Creation
Now that you’ve whipped up this amazing Sweet Potato Casserole with Marshmallows, I’d LOVE to hear all about it! Did it become a new family favorite? Did everyone gobble it up? Drop a comment below and let me know how it turned out. And if you share a pic on social media, be sure to tag me – I can’t wait to see your masterpiece!
Print
Amazing Sweet Potato Casserole with Marshmallows
- Total Time: 45 minutes
- Yield: 8-10 servings
- Diet: Vegetarian
Description
A classic holiday side dish featuring creamy mashed sweet potatoes baked with a sweet marshmallow topping.
Ingredients
- 4 cups mashed sweet potatoes (about 4 large)
- 1/2 cup butter, melted
- 1/2 cup granulated sugar
- 1/4 cup milk
- 2 large eggs, beaten
- 1 teaspoon vanilla extract
- 1/2 teaspoon salt
- 1/4 teaspoon cinnamon
- 2 cups mini marshmallows
Instructions
- Preheat oven to 350°F (175°C).
- In a large bowl, combine mashed sweet potatoes, melted butter, sugar, milk, beaten eggs, vanilla extract, salt, and cinnamon. Mix well until smooth.
- Pour the sweet potato mixture into a greased 9×13 inch baking dish.
- Bake for 20-25 minutes, or until set.
- Remove from oven and spread mini marshmallows evenly over the top.
- Return to oven and bake for another 5-10 minutes, or until marshmallows are golden brown and puffy.
- Serve warm.
Notes
- For a richer flavor, you can add a pinch of nutmeg to the sweet potato mixture.
- If using canned sweet potatoes, drain them well before mashing.
- You can toast the marshmallows under the broiler for a darker color, but watch them closely to prevent burning.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Side Dish
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 350
- Sugar: 45g
- Sodium: 150mg
- Fat: 15g
- Saturated Fat: 7g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 55g
- Fiber: 5g
- Protein: 3g
- Cholesterol: 50mg







