I still remember the smell from my grandmother’s kitchen, the warm, sugary steam that wrapped around you like a soft blanket. That memory sneaks up on me every holiday, and it is why I make this dish again and again. Sweet Potato Casserole sits somewhere between a side and dessert and it always brings out the cozy conversations and laughter around my table.
This version is simple, forgiving, and made with ingredients you probably already have. If you want to compare how others dress up their marshmallow-topped classics, check out this take on Ruth’s Chris sweet potato casserole for inspiration. I’ll walk you through tools, tweaks, and plating ideas so you feel confident making it for weeknight comfort or a big family dinner.
Short paragraphs, honest tips, and sensory notes are all included. You’ll learn how to coax the best texture from mashed sweet potatoes and get those marshmallows perfectly golden without burning.
Kitchen Essentials You’ll Need
I like to keep my kitchen simple for this dish. A few reliable tools make the recipe easy and give you better results. These items help with texture, warmth, and presentation.
- Large mixing bowl. Room to blend without spilling.
- Electric mixer or potato masher. For that silky, lump-free mash.
- 9×9 or similar baking dish. Shallow dishes brown the marshmallow topping beautifully.
- Rubber spatula. To scrape every bit of sweet potato into the dish.
- Measuring cups and spoons. Accurate sweetness matters here.
A good oven thermometer is also a small luxury. Ovens can run hot or cold and this helps you hit the 350°F mark for even baking. If you love browned marshmallows, a broiler-safe dish and careful attention in the last minute or two will be your secret weapon.
Why You’ll Love This Sweet Potato Casserole
There is something so comforting about a dish that feels indulgent and homey at once. The warm sweetness of mashed sweet potatoes meets a golden, toasted blanket of marshmallows and it feels like a hug on a cold day. Flavor and texture come together in a way that is both nostalgic and fresh.
- Flavor: The brown sugar and vanilla bring warmth while cinnamon adds a gentle spice.
- Texture: Creamy sweet potato base contrasts with the slightly crisp, gooey marshmallow top.
- Convenience: It uses mostly pantry staples and comes together quickly.
- Crowd-pleaser: Kids love the marshmallow fun and adults appreciate the comforting flavors.
If you like reading about regional twists, the maple-scented variations are delightful. Take a peek at this Southern Maple Sweet Potato Casserole to spark ideas for adding a touch of maple to your own version. The balance of creaminess and that toasted sugar top makes it perfect for holiday tables and cozy weeknights alike.
Sweet Potato Casserole Ingredients
Here are the star ingredients to have on hand. I keep the list straightforward so nothing overshadows the sweet potato base.
4 cups sweet potatoes, cooked and mashed, 1/2 cup brown sugar, 1/4 cup milk, 1/4 cup butter, melted, 1 teaspoon vanilla extract, 1/2 teaspoon cinnamon, 1 cup mini marshmallows
You can also add a pinch of salt to balance sweetness and a dash of black pepper if you want a subtle edge. For extra richness, swap in a tablespoon of butter to dot the top before adding marshmallows. If you love a little crunch, consider a small handful of chopped pecans sprinkled on top of the marshmallows right before serving. Simple pantry extras to consider:
- Salt, to taste
- A tablespoon of orange zest for brightness
- A splash of heavy cream in place of milk for extra creaminess
Step-by-Step Instructions
- Preheat your oven to 350°F (175°C). Make sure the rack is in the middle position. You want even heat so the marshmallows toast without burning. I usually set a timer for the preheat and give the oven a few extra minutes to stabilize.
- In a large bowl, combine the mashed sweet potatoes, brown sugar, milk, melted butter, vanilla extract, and cinnamon. Use an electric mixer or potato masher to blend until smooth and creamy. As you mix, watch the texture shift from chunky to velvety. The aroma of butter and vanilla will lift and the color will turn a warm, inviting orange.
- Transfer the mixture to a greased baking dish and spread it out evenly. Use a rubber spatula to smooth the surface and create a shallow well in the center so the marshmallows can nestle in. The layer should be even so everything heats uniformly.
- Sprinkle mini marshmallows generously over the top. Cover the surface completely. The marshmallows puff and caramelize as they heat, so a generous layer gives you that classic toasted cap.
- Bake in the preheated oven for 25-30 minutes until the marshmallows are golden brown. Keep an eye on the last five minutes. You are looking for a soft golden color with a few deeper spots of caramelization. The marshmallows will be pillowy but slightly crisp on the outside.
- Remove from the oven and let cool for a few minutes before serving. This brief rest helps the marshmallows set a bit so slices hold together. Serve warm and enjoy the scent and soft textures as everyone digs in.

Fun Variations You Can Try
If you like to tinker, there are so many small changes that create new experiences. Here are ideas to stretch this simple recipe.
- Streusel topping. Mix flour, brown sugar, butter, and chopped pecans for a crumbly layer beneath the marshmallows.
- Maple swap. Replace some or all of the brown sugar with maple syrup for a deeper, woodsy sweetness.
- Vegan option. Use non-dairy milk, plant butter, and vegan marshmallows. The texture will be similar and still comforting.
- Savory twist. Fold in crumbled cooked bacon or crispy shallots for a sweet-salty contrast.
- Spice it up. Add a pinch of nutmeg, ginger, or cardamom for a warming spice profile.
- Mini casseroles. Scale down and bake in individual ramekins for a pretty single-serve presentation.
- Nut crust. Press crushed graham crackers or toasted pecans on the bottom for texture under the sweet potato layer.
Each variation shifts the mood of the dish. I often pick one tweak for the holidays and another for a weeknight side. Small additions like orange zest or a sprinkle of fleur de sel right before serving make a difference.
How I Love to Serve It
This casserole really shines when paired with simple, familiar plates. I like to set a cozy table, dim the overhead light, and let the warm dish be center stage. The marshmallow top invites everyone to dig in and the creamy inside is a hug in a spoon.
Serve with:
- Roast turkey or baked chicken for a classic holiday plate.
- Crisp green salad to cut the richness.
- Steamed green beans tossed with lemon and olive oil for freshness.
- A basket of warm rolls to soak up any leftover sweet potato on the plate.
I often spoon the casserole into a shallow bowl so the marshmallow top remains intact and you get both textures in each bite. For casual dinners, I place it in the middle of the table and let everyone serve themselves. For holiday dinners, I transfer small portions to warmed plates and garnish with a few toasted pecan halves for crunch and visual contrast.
Helpful Tips from My Kitchen
Over the years I’ve learned little things that save time and prevent mishaps. These are the kinds of tips I share with friends who call me in a panic before Thanksgiving.
- Mash while warm. Warm sweet potatoes mash more smoothly and absorb the milk and butter more readily.
- Taste before baking. Adjust sugar and salt when the mixture is still in the bowl so flavors are balanced.
- Toast evenly. If the marshmallows brown too quickly on one side, rotate the dish halfway through baking.
- Prevent burning. If marshmallows brown too fast, tent lightly with foil for the last few minutes.
- Use an electric mixer for a silkier texture but a potato masher works if you prefer a more rustic feel.
- Make ahead. You can assemble the mash and refrigerate up to a day. Add marshmallows right before baking for best texture.
- Reheating. Reheat gently at 325°F until warmed through. A quick blast under the broiler for 20-30 seconds re-toasts marshmallows.
A little patience during the final minutes of baking pays off. Keep a close eye on the marshmallows and enjoy the delicious aroma as it fills your kitchen.
Important Cooking Reminders
- Always use oven mitts and avoid touching hot baking dishes directly.
- Store leftovers in an airtight container in the refrigerator for up to 4 days.
- Reheat in a 325°F oven until warmed through. Add a few extra marshmallows if you want to refresh the top.
- Do not leave the oven unattended with the broiler on. Marshmallows can burn quickly.
- Cool casseroles to room temperature before refrigerating to prevent condensation and sogginess.
- For best texture, add marshmallows just before baking rather than before storing.
Nutritional Information (Estimated)
This is an approximate estimate per serving when the casserole is divided into 8 portions. Calories are dominated by sweet potatoes, butter, sugar, and marshmallows. Expect moderate carbohydrates and a small amount of protein from milk and butter. If you swap in plant-based alternatives, totals will shift slightly.
• Calories: ~220–300 kcal per serving
• Carbs: ~35–45 g
• Fat: ~8–12 g
• Protein: ~2–4 g
These numbers are general. Serving size and specific ingredient brands will change totals. For a lighter version, reduce brown sugar slightly and use low-fat milk.
Recipe Details
- Prep Time: 15 minutes
- Cook Time: 25–30 minutes
- Total Time: 40–45 minutes
- Yield: Serves 6–8

Common Questions You Might Have
How do I prevent marshmallows from burning while still getting a golden top?
Marshmallows age from glossy and white to golden in a short span. Bake at 350°F and check at 20 minutes. If they brown too quickly, tent with foil and lower the rack. For a perfectly browned top, you can finish with a very short broil but watch closely and remove as soon as gold appears.
Can I use canned sweet potatoes?
Yes. Canned sweet potatoes are convenient and fine to use. Drain well and mash until smooth. You may want to reduce added milk slightly if the cans seem watery. Taste and adjust sugar and salt before baking.
What if I want this vegan or allergy friendly?
Use plant-based butter, almond or oat milk, and vegan marshmallows. A little extra fat like a tablespoon of coconut oil can help mimic the mouthfeel of butter. Taste and tweak sweetness before baking. You can also replace marshmallows with a crumb topping of oats and chopped nuts for a nutty finish.
Conclusion
This recipe is one I reach for when I want comfort with a touch of nostalgia. The sticky, toasted marshmallow top and the velvety sweet potato beneath it are cozy in a way that makes guests sigh contentedly. When you serve this, pay attention to the warmth and the little details, like the way the marshmallows crackle when spooned open and the way subtle vanilla and cinnamon flavors drift up. Making it ahead is kind to your schedule and finishing it just before the meal keeps everything fresh and bright.
I hope this dish becomes one of your reliable favorites, the one you call on when you want to send a little extra love to the table. Sweet Potato Casserole has that power to conjure memories and to make a room feel like home. Enjoy the baking, the aromas, and above all the soft, sweet bites that bring everyone together around the table.
PrintSweet Potato Casserole
- Total Time: 45 minutes
- Yield: 6-8 servings 1x
- Diet: Vegetarian
Description
A comforting mix of creamy sweet potatoes topped with golden caramelized marshmallows, perfect for holidays or family dinners.
Ingredients
- 4 cups sweet potatoes, cooked and mashed
- 1/2 cup brown sugar
- 1/4 cup milk
- 1/4 cup butter, melted
- 1 teaspoon vanilla extract
- 1/2 teaspoon cinnamon
- 1 cup mini marshmallows
- Salt, to taste
- A dash of black pepper (optional)
- 1 tablespoon butter (optional for topping)
- Chopped pecans (optional for topping)
Instructions
- Preheat your oven to 350°F (175°C) with the rack in the middle position.
- In a large bowl, combine the mashed sweet potatoes, brown sugar, milk, melted butter, vanilla extract, and cinnamon. Mix until smooth.
- Transfer the mixture to a greased baking dish, smoothing the surface with a rubber spatula.
- Sprinkle mini marshmallows generously on top.
- Bake in the preheated oven for 25-30 minutes until the marshmallows are golden brown.
- Remove from the oven and let cool for a few minutes before serving.
Notes
For best results, use warm sweet potatoes for mashing. Adjust sweetness and salt before baking. Add marshmallows just before baking to maintain texture.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 300
- Sugar: 25g
- Sodium: 150mg
- Fat: 12g
- Saturated Fat: 7g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 45g
- Fiber: 4g
- Protein: 3g
- Cholesterol: 30mg
Keywords: sweet potato, casserole, dessert, holiday, marshmallows