sweet potato and marshmallow recipe
The Best sweet potato and marshmallow recipe
I make this sweet potato and marshmallow recipe every Thanksgiving and usually again around Christmas, and it has become the one dish my family asks about before anything else. Sweet potatoes get baked until soft, mashed with butter, brown sugar, cinnamon, and a splash of milk, then spread in a baking dish and topped with marshmallows that go under the broiler until they puff and turn golden brown on top. It takes about an hour start to finish and most of that is hands off. I like that I can assemble it earlier in the day, keep it covered in the fridge, and bake it right before dinner so the marshmallow layer is still warm when it reaches the table.
My kids treat the marshmallow topping like dessert and they have no idea they are eating a vegetable they would normally ignore. My husband was skeptical the first year I made it because his family never served sweet potatoes this way, and now he is the one who reminds me to double the batch. It works just as well for a weeknight dinner next to roast chicken as it does for a holiday spread, which is why I stopped saving it for November only.
Sweet potatoes bring real nutrition to the plate. They are high in beta carotene, which your body converts to vitamin A, and they provide fiber, vitamin C, and potassium. Baking them whole instead of boiling keeps more of that flavor and texture intact, and mashing by hand leaves a little body in the dish rather than turning it into puree. The butter, sugar, and marshmallows are not health food and I do not pretend otherwise, but the sweet potato itself does plenty of work here, and a serving still lands as a vegetable side rather than a straight dessert.
Sweet Potato and Marshmallow Casserole
This sweet potato and marshmallow casserole pairs a creamy, lightly spiced sweet potato base with a toasted marshmallow topping. It is a familiar holiday side dish that comes together in one baking dish and finishes under the broiler for a golden top.
🥘Ingredients
For the Sweet Potato Base
For the Marshmallow Topping
👨🍳Directions
🔧Equipment
📊Nutrition Facts (per serving)
📝Notes
Watch Video Of How Sweet Potato and Marshmallow Casserole Works
This sweet potato and marshmallow bake is one of those dishes I keep coming back to because it fits just about any occasion, from a weeknight dinner to a holiday table crowded with family. It travels well, feeds a crowd, and appeals to both the kids and the adults, which is not something I can say about most sides. If you are looking for something reliable to bring to your next gathering, this is it.
❓ Frequently Asked Questions About Sweet Potato and Marshmallow Casserole
1. Can I make sweet potato casserole ahead of time?
Yes. Bake the sweet potato base, spread it into the baking dish, cover, and refrigerate for up to two days. Add the marshmallow topping right before baking so it does not weep or dissolve into the potatoes. If you are coming from the fridge, let the dish sit at room temperature for about 20 minutes, then bake a little longer at the start to heat it through before the marshmallows go on.
2. Why did my marshmallows burn before the casserole was hot?
Marshmallows brown fast because they are mostly sugar. The usual culprit is a rack set too close to the broiler or a topping added while the sweet potatoes are still cold. Bake the sweet potato layer until it is bubbling at the edges first, then scatter the marshmallows on top and return the dish to the oven. Watch it the whole time, since the browning window can be as short as a minute or two under a broiler.
3. What is the best way to cook the sweet potatoes?
Roasting gives the sweetest, thickest result. Prick the potatoes, bake them at 400°F for roughly 50 to 65 minutes until a knife slides in with no resistance, then scoop out the flesh. Boiling works and is faster, but the mashed potatoes hold more water, so drain them well and let the steam escape for a few minutes before mashing. Either way, mash while warm so the butter melts evenly.
4. Can I use mini marshmallows instead of large ones?
Yes, and they melt more evenly across the surface. Mini marshmallows brown faster than large ones, so pull the dish a minute or two earlier and check often. Use enough to cover the top in a single layer rather than piling them deep, which keeps the bottom layer from turning to liquid before the top toasts.
5. How do I keep the topping from sinking into the sweet potatoes?
The sweet potato layer needs some structure. Let the mash cool slightly so it firms up, spread it evenly without leaving dips, and avoid adding extra liquid like milk or juice beyond what the recipe calls for. A light dusting of brown sugar or a scatter of chopped pecans over the surface creates a small buffer that helps the marshmallows sit on top instead of sliding under.
