As I gathered with my family one chilly autumn evening, the warm, sweet aroma of this Classic Sweet Potato Casserole with Marshmallows filled the air, wrapping us in a cozy embrace. This dish is a nostalgic favorite at our holiday gatherings, combining the rich, creamy goodness of sweet potatoes with the delightful crunch of toasted mini marshmallows. It’s not just comfort food; it’s a crowd-pleaser that’s incredibly easy to prepare, making it the perfect centerpiece for busy home chefs. Whether you’re serving it as a tasty side or a sweet finale to your meal, this casserole brings smiles all around the table. Have you ever tasted that divine moment when sweet meets fluffy? Let’s dive into creating this delightful dish together!

Why is this Sweet Potato Casserole unforgettable?
Comforting, This Sweet Potato Casserole with Marshmallows is the epitome of comfort food, wrapping you in warm, nostalgic flavors. Gooey Delight: The toasted marshmallows on top create an irresistible layer of chewiness that will have everyone reaching for seconds. Quick & Easy: With simple ingredients and straightforward steps, this recipe is perfect for busy evenings or holiday chaos. Versatile Toppings: Feel free to switch up the marshmallows for candied pecans for a delightful crunch; the options are endless! Perfect for Sharing: Ideal for gatherings, this dish sparks joy at the dinner table, making it a must-have for family meals. You’ll want to pair it with savory dishes like Ranch Beef Corn for a well-rounded feast!
Sweet Potato Casserole with Marshmallows Ingredients
For the Base
- Sweet Potatoes – The heart of this dish, providing natural sweetness and creaminess; canned sweet potatoes can be used for quicker prep.
- Unsalted Butter – Adds a rich, smooth texture; substitute with vegan butter for a dairy-free version.
- Brown Sugar – Sweetens the casserole and deepens flavors; white sugar is a suitable alternative if necessary.
- Whole Milk – Contributes to the creamy texture; swap for almond milk or any non-dairy alternative for a lighter option.
- Vanilla Extract – Elevates the flavor profile; pure vanilla extract is recommended for maximum taste.
- Ground Cinnamon – Infuses warm spice; nutmeg can also be used for a different aromatic touch.
- Salt – Enhances sweetness and balances flavors; it’s essential for achieving the perfect taste.
For the Topping
- Mini Marshmallows – Provide a sweet, chewy finish that’s loved by many; consider using candied pecans or toasted coconut for varied texture and flavor.
This Sweet Potato Casserole with Marshmallows is sure to be the star on your table, bringing joy and warmth to every gathering!
Step‑by‑Step Instructions for Sweet Potato Casserole with Marshmallows
Step 1: Preheat the Oven
Begin by preheating your oven to 350°F (175°C). While the oven warms up, grease a 9×13 inch baking dish with a little unsalted butter. This will prevent your delicious Sweet Potato Casserole with Marshmallows from sticking to the dish, ensuring a perfect serving every time.
Step 2: Cook the Sweet Potatoes
In a large pot, add your cubed sweet potatoes and cover them with water. Bring the pot to a boil over medium-high heat, cooking for about 15-20 minutes, or until fork-tender. Make sure the sweet potatoes are soft enough to mash easily; then drain the water and prepare for mashing.
Step 3: Mash the Sweet Potatoes
Transfer the drained sweet potatoes to a large mixing bowl. Using a potato masher or a fork, mash them until smooth and creamy. Mix in the melted butter, brown sugar, whole milk, vanilla extract, ground cinnamon, and a pinch of salt. Stir until everything is well combined, creating a luscious mixture for your casserole.
Step 4: Bake the Casserole Base
Spread the sweet potato mixture evenly into your prepared baking dish. Place the dish in the oven and bake for approximately 25 minutes. You’ll know it’s ready when the top looks slightly set and has begun to firm up, creating an inviting base for the toasted marshmallows.
Step 5: Add the Marshmallow Topping
After 25 minutes, carefully remove the casserole from the oven. Generously sprinkle mini marshmallows over the top, covering it completely. The marshmallows will melt and become sweetly gooey while baking, which adds a delightful contrast to the creamy sweet potatoes.
Step 6: Finish Baking for Perfection
Return the dish to the oven and bake for an additional 8-10 minutes, or until the marshmallows are golden brown and slightly toasted. Keep a close eye on them to ensure they don’t burn, as you aim for that perfectly caramelized finish that elevates your Sweet Potato Casserole with Marshmallows to a whole new level.
Step 7: Serve and Enjoy
Once baked to perfection, remove the casserole from the oven and let it cool slightly before serving. This Sweet Potato Casserole with Marshmallows can be enjoyed warm on its own or alongside savory dishes. Every scoop should offer an irresistible blend of flavors that warms the heart and pleases the palate!

Storage Tips for Sweet Potato Casserole with Marshmallows
Fridge: Store any leftover Sweet Potato Casserole with Marshmallows in an airtight container for up to 3 days. This helps retain the flavors and textures.
Freezer: For longer storage, freeze the casserole in a freezer-safe container for up to 2 months. Consider covering it with foil to prevent freezer burn.
Reheating: To reheat, thaw overnight in the fridge, then warm in a 350°F (175°C) oven for about 20-25 minutes until heated through. Add fresh marshmallows on top for an extra gooey finish!
Enjoying Cold: Surprisingly, this casserole can be enjoyed cold too! The flavors actually deepen in the fridge, making it a great make-ahead option for family gatherings.
Sweet Potato Casserole with Marshmallows Variations
Customize your Sweet Potato Casserole with Marshmallows to tantalize your taste buds and delight your family even more!
- Nutty Crunch: Swap mini marshmallows with candied pecans for a crunchy, sweet topping that contrasts beautifully with the creamy base.
- Maple Bliss: Replace brown sugar with pure maple syrup for a naturally sweet flavor that enhances the overall taste profile.
- Coconut Cream: Stir in shredded coconut into the sweet potato mixture for a tropical twist that adds texture and unexpected flavor.
- Spiced Up: Incorporate a pinch of cayenne pepper or smoked paprika to the sweet potato base. This subtle heat balances the sweetness perfectly.
- Gourmet Touch: Add a swirl of cream cheese or mascarpone to the sweet potato mixture for a rich, indulgent layer of flavor that elevates your dish.
- Fruit-Filled Delight: Mix in chopped apples or cranberries for bursts of tart sweetness, creating a lovely contrast to the rich creaminess of the casserole.
- Vegan Version: Use almond milk and coconut oil instead of butter and milk for a delectable dairy-free option that doesn’t sacrifice flavor.
- Mallow Alternatives: Try using toasted coconut flakes or crushed graham crackers instead of marshmallows on top for a unique spin that’s equally scrumptious.
These variations allow you to make a classic dish uniquely yours. Serve it up alongside savory favorites like Sweet Potato Soup or finish your meal with flavors from Butter Salmon Potatoes. Happy cooking!
Expert Tips for Sweet Potato Casserole
- Optimal Sweetness: Use ripe sweet potatoes for your casserole to enhance the natural sweetness. Underripe potatoes can result in a less flavorful dish.
- Perfectly Creamy: Ensure your sweet potatoes are mashed until completely smooth to avoid lumps. This is crucial for achieving that delightful creamy texture in your Sweet Potato Casserole with Marshmallows.
- Watch the Marshmallows: Keep a close watch on the marshmallows during the final bake. They can quickly go from golden brown to burnt if left unattended!
- Experiment with Toppings: Don’t shy away from swapping mini marshmallows with other toppings like candied pecans. This creates a unique flavor profile and extra crunch in the casserole.
- Seal in Freshness: Allow any leftovers to cool completely before storing in an airtight container in the fridge. This preserves the taste and texture for up to 3 days.
Make Ahead Options
This Sweet Potato Casserole with Marshmallows is perfect for busy cooks looking to save time without sacrificing flavor! You can prepare the sweet potato mixture (steps 2 and 3) up to 24 hours in advance; simply mash and mix your ingredients, then transfer them to a greased baking dish. Cover tightly with plastic wrap and refrigerate. To maintain quality, let the casserole sit at room temperature for about 30 minutes before baking. When you’re ready to serve, bake it at 350°F (175°C) for 25 minutes before adding the marshmallows, then top and bake for an additional 8-10 minutes. This way, you’ll have a cozy, home-cooked meal ready to impress your guests with minimal last-minute effort!
What to Serve with Sweet Potato Casserole with Marshmallows
The perfect meal is just around the corner, waiting to be complemented by vibrant and delicious pairings.
- Roast Chicken: The savory flavors of tender, seasoned chicken balance the sweetness of the casserole beautifully.
- Cranberry Sauce: A tangy burst of flavor that cuts through the richness, making each bite a delightful contrast.
- Green Bean Almondine: Fresh green beans sautéed with almonds add a crunchy texture and earthy taste, enhancing the meal’s overall freshness.
- Stuffing: A classic Thanksgiving staple, stuffing’s herby flavors provide a heartiness that works well alongside the creamy casserole.
- Sweet Cornbread: The sweet, crumbly texture of cornbread blends perfectly with the smoothness of the Sweet Potato Casserole with Marshmallows.
- Pumpkin Pie: End the meal on a sweet note, with the fall spices of classic pumpkin pie harmonizing with the sweet potato flavors.
- Apple Cider: A seasonal beverage that brings warmth and sweetness, making it a comforting choice to sip throughout the meal.
- Chili: A warm, hearty chili adds a robust, spicy flavor that contrasts beautifully with the sweet, creamy casserole.
- Mixed Green Salad: A fresh, crisp salad with a light vinaigrette provides a refreshing counterpart to the rich casserole and the rest of your meal.

Sweet Potato Casserole with Marshmallows Recipe FAQs
How do I choose the perfect sweet potatoes for my casserole?
Absolutely! When selecting sweet potatoes, look for ones that are firm, smooth, and vibrant in color. Avoid those with soft spots or dark patches, as these can indicate spoilage. The ideal sweet potato should feel heavy for its size, which signifies moisture content. For this recipe, I often choose medium-sized ones, as they tend to have the right balance of sweetness and creaminess.
How should I store leftover Sweet Potato Casserole with Marshmallows?
To keep your casserole fresh, allow it to cool completely and then store it in an airtight container in the fridge for up to 3 days. Be sure to label it with the date, as it can get lost in the back of the fridge! If you prefer, this casserole can also be enjoyed cold; the flavors can become even more pronounced after sitting in the fridge.
Can I freeze my Sweet Potato Casserole with Marshmallows?
Absolutely! To freeze, first ensure the casserole has fully cooled. Transfer it to a freezer-safe container and cover it tightly with foil or plastic wrap to prevent freezer burn. It can be frozen for up to 3 months. When you’re ready to enjoy, thaw it overnight in the refrigerator, then reheat in a 350°F (175°C) oven for about 20-25 minutes or until heated through. For an extra touch, add some fresh marshmallows on top before reheating!
What should I do if my casserole turns out too runny?
Very! If your casserole is too runny, don’t worry! You can try mixing in a tablespoon of cornstarch with a little water to thicken it. Another option is to return the casserole to the oven for an additional 10-15 minutes, allowing some of the moisture to evaporate. If you’re using canned sweet potatoes, ensure they are well-drained before mashing for a firmer base.
Are there any dietary considerations I should be aware of?
Yes! If you’re serving this Sweet Potato Casserole with Marshmallows to guests with dietary restrictions, consider using vegan butter and almond milk for a dairy-free version. Additionally, be mindful of allergies if using alternative toppings, such as nuts or coconut. Always check with your guests about any specific allergens to ensure everyone can enjoy this delicious treat!

Irresistible Sweet Potato Casserole with Marshmallows Magic
Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C) and grease a 9x13 inch baking dish with unsalted butter.
- In a large pot, add cubed sweet potatoes and cover them with water. Bring to a boil and cook for about 15-20 minutes until fork-tender.
- Transfer drained sweet potatoes to a mixing bowl and mash until smooth. Mix in melted butter, brown sugar, whole milk, vanilla extract, ground cinnamon, and salt.
- Spread the sweet potato mixture into the prepared baking dish and bake for approximately 25 minutes until slightly set.
- Remove from oven and sprinkle mini marshmallows on top to cover completely.
- Return to oven and bake for an additional 8-10 minutes until marshmallows are golden brown.
- Allow to cool slightly before serving and enjoy!

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