As the leaves start to fall and a chill fills the air, there’s a quintessential dish that brings warmth and nostalgia to the dining table: Sweet Potato Casserole with Marshmallows. This classic recipe isn’t just a treat for the taste buds; it’s an emotional connector, evoking mementos of cozy family gatherings and festive celebrations. A delightful blend of sweet potatoes and gooey marshmallows, it’s a beloved side dish that shines during the holiday season. If you’re looking to elevate your holiday meals with a dish that’s both traditional and trendy, this sweet potato casserole will be the showstopper. Comfort food with a twist, it promises to deliver satisfaction in every spoonful. Let’s dive into creating a holiday masterpiece that you’ll cherish and share with loved ones year after year.

Ingredients
This recipe embraces the buttery sweetness of sweet potatoes, coupled with the fluffy texture of marshmallows. Here’s what you’ll need:
- 4 large sweet potatoes, peeled and cubed
- 1/2 cup butter, melted
- 1/4 cup brown sugar
- 1/2 cup heavy cream
- 1 tsp vanilla extract
- 1/2 tsp cinnamon
- 1/4 tsp nutmeg
- 1/4 tsp salt
- 2 cups mini marshmallows
Ingredient Science: Sweet potatoes are starchier than regular potatoes and offer natural sweetness. The added brown sugar and cinnamon enhance this innate flavor, while the butter and cream contribute to a silky texture.
Substitution Tips: For a vegan version, swap the butter and cream for coconut oil and coconut cream. If you’re watching sugar intake, consider using a sugar substitute like stevia or monk fruit.
Step-by-Step Instructions
Follow these steps to craft a perfect sweet potato casserole:
Step 1: Preheat your oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish.
Step 2: Place cubed sweet potatoes in a large pot. Cover with water and boil until tender, about 15-20 minutes. Drain and transfer to a mixing bowl.
Step 3: Mash the sweet potatoes until smooth. Stir in melted butter, brown sugar, cream, vanilla, cinnamon, nutmeg, and salt. Mix until well combined.
Step 4: Spread the sweet potato mixture evenly in the prepared baking dish.
Step 5: Sprinkle marshmallows evenly over the top of the sweet potato mixture.
Step 6: Bake in the preheated oven for 20-25 minutes, or until the marshmallows are golden brown and puffy.
Expert Tips
Having tested various methods, here are some expert tips to ensure a perfect casserole every time:
- Marshmallow Magic: Keep an eye on the marshmallows as they can go from perfectly toasted to burnt quickly.
- Bake Ahead: Prepare the sweet potato mixture in advance and refrigerate. Add marshmallows right before baking to save time on busy holiday mornings.
- Texture Play: If you prefer a chunkier texture, mash the potatoes with a fork instead of a mixer.
Storage & Substitutions
This casserole is as convenient to store as it is delicious:
- Refrigeration: Store leftovers in an airtight container in the fridge for up to 3 days.
- Freezing: You can freeze the sweet potato mixture before adding marshmallows. Thaw in the refrigerator, then top with marshmallows and bake.
- Substitutions: Try using pecans or walnuts for a crunchy topping alternative. Replace marshmallows with a streusel topping if desired.

FAQ
Can I use canned sweet potatoes?
Yes, canned sweet potatoes can be used as a substitute. Be sure to drain them well before mashing.
What can I use instead of marshmallows?
If you prefer, substitute marshmallows with a crumbly topping made from oats, brown sugar, and butter.
Is there a way to make this casserole healthier?
To make a healthier version, use low-fat milk instead of cream and reduce sugar by increasing cinnamon for natural sweetness.
How can I add more flavor to this dish?
Consider adding a splash of bourbon or brandy for a depth of flavor. A sprinkle of orange zest can also brighten the dish.
Can I make this casserole gluten-free?
This recipe is naturally gluten-free, but always check your ingredient labels to avoid any gluten-containing additives.
PrintSweet Potato Casserole with Marshmallows
Discover the best recipe for sweet potato casserole featuring delicious marshmallows for a comforting dish
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Total Time: 1 hour
- Yield: 8 servings
- Category: Side Dish
- Cuisine: American
Ingredients
- 4 large sweet potatoes, peeled and cubed
- 1/2 cup butter, melted
- 1/4 cup brown sugar
- 1/2 cup heavy cream
- 1 teaspoon vanilla extract
- 1/2 teaspoon cinnamon
- 1/4 teaspoon nutmeg
- 1/4 teaspoon salt
- 2 cups mini marshmallows
Instructions
- Preheat your oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish.
- Place cubed sweet potatoes in a large pot. Cover with water and boil until tender, about 15-20 minutes. Drain and transfer to a mixing bowl.
- Mash the sweet potatoes until smooth. Stir in melted butter, brown sugar, cream, vanilla, cinnamon, nutmeg, and salt. Mix until well combined.
- Spread the sweet potato mixture evenly in the prepared baking dish.
- Sprinkle marshmallows evenly over the top of the sweet potato mixture.
- Bake in the preheated oven for 20-25 minutes, or until the marshmallows are golden brown and puffy.
Notes
A comforting blend of sweet potatoes and gooey marshmallows, this Sweet Potato Casserole with Marshmallows is a beloved side dish that shines during the holiday season.


