Side Dishes
This twice baked sweet potato recipe with marshmallows delivers the perfect balance of crispy edges and gooey, caramelized marshmallow topping that’ll have everyone reaching for seconds.
The secret lies in baking the sweet potatoes until tender, then broiling them with marshmallows until golden and bubbly—transforming a simple side into a showstopping centerpiece. I’ve perfected this technique over years of holiday gatherings, where it consistently disappears before the main course even hits the table.
The process is simpler than it sounds: roast the sweet potatoes until fork-tender, then scoop out the flesh and mix it with butter, brown sugar, and warm spices for depth of flavor. Return the mixture to the skins and top with marshmallows before broiling until crispy and caramelized.
The result is a dish that’s rich, slightly sweet, and irresistibly gooey—ideal for Thanksgiving, game day, or any night you want to elevate your meal.
What makes this recipe stand out is the contrast in textures: the crispy edges from broiling contrast beautifully with the soft, marshmallow-topped center, creating a bite that’s both satisfying and indulgent.
The warm spices in the filling add complexity, while the marshmallows caramelize into a sticky, golden glaze that ties everything together. It’s the kind of dish that feels special without requiring hours in the kitchen.
For extra flair, sprinkle a pinch of cinnamon or a drizzle of honey over the marshmallows before broiling, or add a dollop of whipped cream for a dessert-like finish.
Serve immediately while the marshmallows are still gooey and the edges are perfectly crispy. This recipe is your ticket to a side dish that steals the show.
Ingredients for twice baked sweet potato recipe with marshmallows
Transform ordinary sweet potatoes into a showstopping centerpiece with these carefully chosen ingredients.
| Ingredient | Amount | Notes |
|---|---|---|
| Large Sweet Potatoes 🍠 | 3 whole | Medium-sized, uniform shape |
| Unsalted Butter 🧈 | ½ cup | Cold, cut into small cubes |
| Light Brown Sugar 🍚 | ½ cup | Packed, not granulated |
| Ground Cinnamon 🌿 | 1 tsp | Freshly ground preferred |
| Ground Nutmeg 🌿 | ¼ tsp | Freshly grated for warmth |
| Salt 🧂 | ½ tsp | Diamond Crystal kosher |
| Large Eggs 🥚 | 2 whole | Room temperature for binding |
| Miniature Marshmallows 🍫 | 1 ½ cups | Standard size, not jumbo |
| Granulated Sugar 🍚 | 2 tbsp | For marshmallow topping |
| Ground Ginger 🌿 | ¼ tsp | Optional for depth of flavor |
| Heavy Cream 🥛 | ¼ cup | Optional for extra richness |
The sweet potatoes are the foundation—medium-sized ensures even cooking, and uniform shape makes slicing easier. Costco or local farmers' markets often carry perfect specimens, or look for ones with smooth, unblemished skin. The butter should be cold and cubed to prevent melting during mixing, which keeps the filling from turning greasy. For the spices, Penzeys Spices or bulk bins at Whole Foods offer the freshest ground cinnamon and nutmeg, which make all the difference in that warm, comforting flavor. If you can't find miniature marshmallows, standard-sized ones work, but they'll need more time to caramelize evenly.
No brown sugar? White sugar plus 1/2 tsp molasses mimics its depth. Eggs not available? 1 tbsp ground flaxseed mixed with 3 tbsp water per egg works as a binder. Marshmallows too expensive? Melted marshmallow fluff (the kind in tubes) spread over the top gives a similar effect. For extra indulgence, swap the heavy cream for whipped cream dollops before broiling. The optional ginger adds complexity—if you love spice, double the amount. Just ensure your spices are freshly ground; pre-ground spices lose potency quickly.
Store any leftovers in an airtight container for up to 3 days, though they're best served immediately. The filling keeps well in the fridge for 5 days, so you can prep ahead. For make-ahead convenience, assemble the casserole but skip the marshmallows—add them just before broiling. The dish reheats beautifully; cover with foil for 5 minutes at 350°F to warm through gently. The crispy edges soften slightly but still hold their structure, while the marshmallow topping remains gooey.
Why You'll Love This Recipe
- One-Pot Magic: I swear by this for lazy nights—just roast, mash, stuff, and bake. No chopping, no fuss, and that gooey marshmallow crown happens every time without watching like a hawk.
- Caramelized Comfort: The brown sugar and cinnamon blend turns these into something almost dessert-like, but the nutmeg? That’s the secret—it takes them from "good" to "I’ll make this again tomorrow." The butter makes it rich without being heavy.
- Tailgate or Thanksgiving: Between us, this is my go-to for football gatherings and holiday sides. Serve it warm with a sprinkle of flaky salt, and no one will guess it’s basically a sweet potato casserole’s cooler cousin.
- Budget Booster: Sweet potatoes are cheap, and this recipe stretches them into a crowd-pleaser. Leftovers reheat beautifully—just a quick zap in the microwave—and the marshmallows add that "special occasion" feel without breaking the bank.
Step-by-step instructions for twice baked sweet potatoes with marshmallows
Here's how to achieve crispy edges and a perfectly caramelized marshmallow topping every time.
Bake and Prepare the Sweet Potatoes
Preheat your oven to 400°F and pierce each of the 3 whole Large Sweet Potatoes with a fork several times to allow steam to escape. Place them on a baking sheet and bake for 45-50 minutes until a knife slides in easily and the flesh is tender but not mushy.
Remove from the oven and let cool for 10 minutes before handling. Once cool enough to handle, slice each potato lengthwise and scoop out the flesh, leaving a ¼-inch thick shell. Transfer the flesh to a mixing bowl and mash it with a fork or potato masher until smooth. You should have about 3 cups of mashed sweet potato.
Mix the Sweet Potato Filling
In the same bowl, add the 0.5 cup Unsalted Butter (cut into small cubes), 0.5 cup Light Brown Sugar, 1 tsp Ground Cinnamon, 0.25 tsp Ground Nutmeg, 0.5 tsp Salt, and 0.25 tsp Ground Ginger. Mix well until the butter is fully incorporated and the mixture is smooth and creamy.
Add the 2 whole Large Eggs and mix again until fully combined. The mixture should be thick but still spreadable. If it's too thick, add 1 tablespoon of water at a time until you reach a smooth, pipeable consistency. This filling is the foundation for that perfect twice-baked texture.
Assemble and Bake the First Time
Spoon the filling back into the potato shells, pressing down gently to fill them completely. Place the assembled sweet potatoes on a parchment-lined baking sheet and bake at 375°F for 25-30 minutes until the edges are golden brown and the filling is set but still slightly jiggly in the center.
Remove from the oven and let cool for 10 minutes. This initial baking ensures the filling is cooked through while maintaining a tender texture. The edges should be crispy, fulfilling the promise of that perfect twice-baked texture you're aiming for.
Prepare the Marshmallow Topping
In a small bowl, combine the 1.5 cups Miniature Marshmallows and 2 tbsp Granulated Sugar. If using, add the 0.25 cup Heavy Cream to the mixture and gently fold until the marshmallows are evenly coated. This step creates the gooey, caramelized topping that makes these sweet potatoes irresistible.
Spoon the marshmallow mixture evenly over the tops of the baked sweet potatoes. For extra richness, you can also sprinkle a pinch of Ground Cinnamon on top. This topping will transform from fluffy to perfectly caramelized during the second baking.
Bake to Golden Perfection
Return the sweet potatoes to the oven and bake at 375°F for an additional 10-15 minutes, or until the marshmallow topping is golden brown and bubbly. Watch closely during the last few minutes to prevent over-browning.
Once the marshmallows are perfectly caramelized, remove from the oven and let cool for 5 minutes before serving. The edges should remain crispy, while the marshmallow topping will be gooey and sweet. Serve immediately for the best texture and flavor combination.
Pro Tips For Making Twice Baked Sweet Potato Recipe With Marshmallows
- Pierce Those Spuds: Stick a fork in each potato before baking—yes, even if they look firm. I learned this the hard way when my first batch turned out dense and undercooked inside. Three quick jabs per potato let steam escape, giving you a creamy center that melts like butter when you mix in the filling.
- Sweat the Sugar: Lightly melt the brown sugar with the butter before mixing it into the potatoes. That caramelized flavor clings better, and you’ll get a deeper sweetness without adding extra sugar later. (Yes, it’s an extra 2 minutes, but your taste buds won’t forget it.)
- Don’t Rush the First Bake: Bake the potatoes at 400°F until a knife slides in like a hot knife through warm jam—about 45-55 minutes, depending on size. Underbaked potatoes turn gummy when you mix in the filling, and no one wants a sad, gluey center. Patience here guarantees a perfect texture.
- Toast the Marshmallows: Skip the microwave—broil the marshmallows for 1-2 minutes after baking. They’ll get that golden, gooey crown instead of turning into a sad, half-melted blob. Watch them like a hawk, though; they burn faster than you think. (And yes, this is the thing that matters most.)
Make-ahead tips for twice baked sweet potato recipe with marshmallows
Prep Ahead Strategy
Start the prep 24 hours before serving by baking the sweet potatoes and storing the mashed flesh in an airtight container in the fridge. The flavors develop beautifully overnight, and you'll save 30 minutes of last-minute work.
Just reheat the filling in the microwave for 2-3 minutes before assembling—it should be warm but not hot. 💡
Marshmallow Make-Ahead Hack
Skip adding marshmallows until 10 minutes before broiling to keep them fluffy. Store the pre-assembled sweet potatoes (without marshmallows) in the fridge for up to 3 days. When ready to serve, simply top with marshmallows and broil for 5-7 minutes—they'll caramelize perfectly without overcooking the filling.
Freezer-Friendly Assembly
Assemble the sweet potatoes completely (including filling) and freeze them on a baking sheet for 1 hour to firm up. Transfer to a ziplock bag and freeze for up to 2 months.
Thaw overnight in the fridge, then bake as directed—just add marshmallows 10 minutes before the final broil. The texture stays crispy when reheated properly. ❄️
Batch Cooking Tips
Double the recipe and bake two pans simultaneously for gatherings. Use two baking sheets and rotate pans halfway through baking for even cooking. Store extras in the fridge for 4 days or freeze for 2 months. Reheat covered with foil at 350°F for 10 minutes to revive crispiness.
Timing for Game Day
Set a 30-minute timer before serving: bake the assembled sweet potatoes at 375°F for 20 minutes, then add marshmallows and broil for 5 minutes. This ensures they're piping hot when the game starts. Keep them warm in a 200°F oven while serving to maintain crispy edges. 🏈
Garnish Last-Minute Upgrade
Add fresh toppings right before serving to keep them vibrant. Sprinkle toasted pecans or crushed graham crackers over marshmallows for crunch, or drizzle with honey for extra sweetness. These additions elevate the dish without requiring extra prep time. 🌟
Nutrition facts
Frequently asked questions
Can I use regular marshmallows instead of miniature ones?
Yes, but you'll need to adjust the baking time. Regular marshmallows are larger and won't caramelize as evenly. Use about 1 cup instead of 1.5 cups of miniatures, and broil for 3-5 minutes longer, watching closely to prevent burning. The centers may stay slightly softer.
Why did my marshmallow topping burn before the edges got crispy?
This usually happens when the oven runs hot or the marshmallows are too close to the heat source. Reduce the broil setting to medium-low and watch carefully, rotating the pan every 2 minutes. Keep the oven door slightly open for better heat circulation. The edges need 10-15 minutes at 375°F to crisp properly while marshmallows broil in the last 5 minutes.
How can I make this dish healthier without losing flavor?
Swap half the butter for unsweetened applesauce or Greek yogurt to reduce fat while keeping moisture. Use monk fruit sweetener instead of sugar (reduce by half) and top with lightly toasted almonds instead of marshmallows. For a marshmallow alternative, try sugar-free marshmallow fluff or a drizzle of honey. The cinnamon and nutmeg will still provide that warm, comforting flavor.
Can I make this recipe in a slow cooker?
While not ideal for the crispy texture, you can adapt it! After the first baking, place the assembled sweet potatoes in a 350°F slow cooker on low for 1 hour to warm through. Then transfer to a baking sheet, top with marshmallows, and broil for 5-7 minutes to caramelize. The edges won't be as crispy, but the filling will stay warm and flavorful.
What's the best way to reheat leftovers?
Cover with foil and reheat at 350°F for 10-12 minutes to revive crispiness. For extra crunch, broil for 2-3 minutes at the end. Store leftovers in an airtight container for up to 3 days. The marshmallow topping may lose some gooeyness but can be refreshed with a quick broil before serving.