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Homestyle Sweet Potato Casserole with Marshmallows (Print Version)

Homestyle Sweet Potato Casserole with Marshmallows - Creamy, sweet, and topped with golden marshmallows. A comforting side dish, perfect for any gathering.

# Recipe Info:

Prep Time: 25 Minutes minutes
Cook Time: 35 Minutes minutes
Total Time: 60 minutes
Servings: 8 Servings
Difficulty: Beginner
Cuisine: American
Dietary: Vegetarian

# Ingredients:

→ Creamy Base

01 - 3 lbs sweet potatoes, peeled and chopped
02 - 1/2 cup unsalted butter, melted
03 - 1/2 cup light brown sugar, packed
04 - 1/4 cup heavy cream (or whole milk)

→ Flavor Enhancers

05 - 1 tsp vanilla extract
06 - 1/2 tsp ground cinnamon
07 - 1/4 tsp ground nutmeg
08 - 1/4 tsp salt

→ Sweet Topping

09 - 4 cups mini marshmallows

→ Pantry Staples

10 - Water (for boiling sweet potatoes)

# Instructions:

01 - First things first, peel those gorgeous sweet potatoes! I usually grab a vegetable peeler and get to work. Once they're peeled, chop them into roughly 1-inch chunks. This helps them cook evenly and faster. I remember one time I left some chunks too big, and they were still a bit firm while the others were mush – not ideal for a smooth Sweet Potato Casserole with Marshmallows base, honestly. Pop them into a large pot, cover with cold water, and add a generous pinch of salt. Bring to a boil, then reduce heat and simmer until they’re fork-tender, about 15-20 minutes. You want them really soft, easy to mash!
02 - Once those sweet potatoes are tender, drain them <em>really</em> well. I mean, get all that water out! Transfer them to a large mixing bowl. Now, for the fun part: mashing! I usually start with a potato masher, getting them super smooth. Then, I add the unsalted butter, light brown sugar, heavy cream, vanilla extract, ground cinnamon, nutmeg, and that little pinch of salt. Mix it all up until everything is beautifully combined and the mixture is smooth and creamy. This is where the magic happens for your Sweet Potato Casserole with Marshmallows. Taste it! Adjust seasonings if you need to, maybe a little more cinnamon?
03 - Preheat your oven to 375°F (190°C). Grab a 9x13 inch baking dish – or whatever similar size you have kicking around. Lightly grease it with a bit of butter or cooking spray. Spoon the sweet potato mixture evenly into the prepared dish. Smooth out the top with a spatula. This step is pretty straightforward, but I once got distracted and didn't spread it evenly, and some parts baked faster than others. Learn from my chaos, hon! You want a consistent base for that marshmallow topping on your Sweet Potato Casserole with Marshmallows.
04 - This is the moment we've all been waiting for! Evenly scatter those mini marshmallows all over the top of the sweet potato mixture. Don't be shy! I usually go for a generous layer because, honestly, who doesn't love extra gooey, toasted marshmallows? I've had times where I was a bit sparse, and then regretted it mid-meal, wishing for more of that sweet, bubbly topping. This is the signature of a classic Sweet Potato Casserole with Marshmallows, after all.
05 - Place the baking dish into your preheated oven. Bake for about 20-25 minutes, or until the sweet potato mixture is heated through and the marshmallows are puffed, golden brown, and delightfully gooey. Keep a close eye on those marshmallows, though! They can go from perfectly toasted to burnt in a flash. I've definitely learned that the hard way, pulling out a dish with little black marshmallow hats. Around the 15-minute mark, I usually start hovering. This is the exciting part of making Sweet Potato Casserole with Marshmallows!
06 - Once your Sweet Potato Casserole with Marshmallows comes out of the oven, resist the urge to dig in immediately! Let it rest for about 5-10 minutes. This allows everything to set a bit and prevents you from burning your tongue on molten marshmallow (ask me how I know!). The aroma filling your kitchen will be incredible – sweet, warm, and utterly inviting. Serve it warm, and watch it disappear. It’s truly a crowd-pleaser, every single time.

# Notes:

01 - Don't over-boil your sweet potatoes; they'll get watery and your casserole won't be as rich.
02 - Mash them *really* well! Lumps are fine, but super smooth is what makes this a dream.
03 - Keep an eagle eye on those marshmallows in the last few minutes of baking - they can burn fast!
04 - A tiny sprinkle of flaky sea salt over the finished marshmallows sounds weird, but it's a game-changer!

# Tools You'll Need:

01 - Large pot
02 - vegetable peeler
03 - potato masher
04 - large mixing bowl
05 - 9x13 inch baking dish
06 - spatula

# Nutrition Facts (Per Serving):

Calories: 350
Total Fat: 15g
Total Carbohydrate: 50g
Protein: 3g