Sweet potato casserole is the ultimate holiday side dish, a comforting, crowd-pleasing favorite that brings together the natural sweetness of sweet potatoes and a rich, buttery topping. Whether served at Thanksgiving, Christmas, or any family gathering, this dish is a guaranteed hit. The smooth, mashed sweet potatoes are elevated with a sweet, crunchy topping that adds both texture and flavor, making it the perfect complement to any savory main course.
The base of the casserole starts with mashed sweet potatoes, which can be either boiled or roasted to bring out their natural sweetness. After they’re softened, they’re mashed with butter, brown sugar, vanilla, and a hint of cinnamon, nutmeg, or even maple syrup for extra depth of flavor. The result is a creamy, velvety filling that’s both sweet and savory, with a rich texture that’s just the right amount of indulgent.
What makes this dish even more special is the topping. A classic sweet potato casserole topping often features a mix of crushed pecans, brown sugar, and a little butter, which bakes into a sweet, crunchy crust. Some versions use marshmallows for an extra layer of sweetness, toasty golden edges, and a chewy texture that contrasts perfectly with the creamy sweet potatoes underneath.
This dish is incredibly easy to prepare ahead of time, making it an ideal choice for a holiday meal or potluck. Once assembled, it can be stored in the refrigerator and baked just before serving, saving time on the big day. It also reheats well, so you can enjoy leftovers for days after the feast.
Sweet potato casserole is the perfect blend of comfort and elegance. The combination of creamy sweet potatoes and a crunchy topping offers the ideal balance of textures and flavors, making it a holiday essential that brings both warmth and joy to the table. Whether you’re preparing it for a special occasion or a weeknight dinner, it’s sure to become a family favorite.
While sweet potato casserole may be decadent in flavor, it also offers some nutritional value. Sweet potatoes are rich in vitamins A and C, fiber, and antioxidants. They are known to support eye health, boost the immune system, and promote healthy digestion. Additionally, the marshmallow topping can provide a sweet touch without overpowering the wholesome benefits of the sweet potatoes.
Whether you’re preparing a holiday feast or simply craving a comforting side dish, this sweet potato casserole with marshmallow topping is sure to be a hit. Its popularity and nutritional benefits make it an excellent choice for indulgence with a touch of guilt-free satisfaction.

Ingredients
- 4 cups sweet potatoes mashed
- 1/2 cup granulated sugar
- 2 eggs beaten
- 1/2 cup milk
- 1/4 cup butter melted
- 1 tsp vanilla extract
- 1/2 tsp salt
- 1/2 cup brown sugar packed
- 1/2 cup all-purpose flour
- 1/4 cup butter melted
- 1 cup mini marshmallows
Instructions
- Preheat oven to 350 degrees F (175 degrees C).
- In a large bowl, mix together mashed sweet potatoes, granulated sugar, eggs, milk, 1/4 cup melted butter, vanilla extract, and salt. Spread evenly in a 9x13 inch baking dish.
- In a separate bowl, mix together brown sugar, flour, and 1/4 cup melted butter until crumbly. Stir in mini marshmallows. Sprinkle mixture over sweet potato mixture.
- Bake for 30 to 40 minutes, or until topping is golden brown.
I only had 3 cups of sweet potatoes and used less sugar. It turned out fine, but maybe a bit undercooked. Next time, I’ll follow the recipe better.
Not bad, but I think it could use some cinnamon or nutmeg for flavor. Just a suggestion!
I totally agree! A little cinnamon would really make it pop! Gonna try that next time.
Cinnamon? Really? I thought this was sweet enough. Marshmallows already sweeten it a lot!
This was absolutely delicious! The sweet potatoes were so creamy and the marshmallows on top made it extra special. Will definitely make again!
Is this supposed to be a dessert? Sweet potato with marshmallows seems weird. My grandma would roll in her grave if she saw this!
Great recipe! I added a bit of nutmeg and a pinch of cayenne pepper for a twist. Everyone loved it!
Super easy to make! My kids loved it, even my picky eater! Thanks for sharing this recipe.
I didn’t realize you could mix sweet and savory like this. It’s different but kinda good. I’m confused though!
I don’t get why people put marshmallows on sweet potatoes. Too sweet for my taste. I prefer the savory recipes.
Yummm!!!
I wanna make this but I’m allergic to eggs. Can I leave them out? Any suggestions?
Absolutely loved this recipe! It was a hit at our Thanksgiving dinner. The marshmallows on top are a game changer!
I don’t get the point of sweet potatoes with marshmallows. Too sweet for my taste.
I totally get you! The sweetness can be overwhelming. I prefer mine savory too, with just a bit of seasoning.
What? Sweet potatoes and marshmallows are like the best combo! It’s a classic dish, don’t knock it till you try it!
idk why people like it. I hate marshmallows on savory stuff. texture was blah for me.
I added a sprinkle of cinnamon, and it was fantastic! Made it for a potluck, and I had 0 leftovers.
Cinnamon?! That’s so smart! I never thought of that. I bet it adds a nice touch. Gonna try this next time!
Sounds good, but isn’t cinnamon a bit weird for a casserole? Like, isn’t that more for breakfast?
5 stars, easy peasy! But why the extra butter?!
I think the extra butter gives it a richer flavor! But if you’re concerned, you could cut down on it a bit. Still, delicious dish!
Honestly, just use one butter, who needs that much?! Sounds messed up to me. 😒
Looks good but kinda high calories, right? Gonna try it, kinda!
Yeah, it does seem a bit rich! But treats are worth the calories sometimes, right? Hope you enjoy it!
I thought this would be easier. Mine turned out all mushy. Not sure what went wrong.
Don’t worry! Mine turned out mushy too the first time. Maybe you overmixed the sweet potatoes? Just don’t give up! 🥰
I swear my grandma used to add pecans to this! What’s with the marshmallows?
Marshmallows are the best part! But I guess it depends on personal taste. Grandma’s version sounds good too!
Easy to make but kinda sweet for my taste. Maybe cut down the sugar next time. My grandma used to do it diffrent!
This is the best sweet potato casserole I’ve ever had! The marshmallows on top were a delightful surprise.
Meh, I don’t get why people like sweet potatoes. Didn’t enjoy this!
Super easy recipe, but my family said it was too sweet. Might reduce the sugar next time.
Great recipe, but I didn’t have mini marshmallows so I used regular ones. Still turned out delish! 😋
Sweet potatoes never tasted so sweet! I’m not a big fan of sweet things, but this was good. Will make again!
Yum! I swap out the brown sugar for honey and it was still good. Gonna try this for Thanksgiving!
Using honey instead of brown sugar sounds interesting! I bet it adds a nice flavor. Perfect for Thanksgiving!
Yum! Sweet and savory, what more can you ask for? Gotta love sweet potatoes!
Delicious! Easy to follow. My kids loved it! I’m surprised at how much they ate. Thanks for sharing.
Not gonna lie, I was skeptical about putting eggs and marshmallows together, but it actually worked. Texture was nice—like a cross between pie and stuffing (in a good way).
Okay but that actually sounds dangerously good 😅 The “pie/stuffing” texture description convinced me—was it more gooey or more fluffy after baking?
This casserole is soooo good! I made it for Thanksgiving and everyone loved it! Will definitely make again!
I can’t believe how good it turned out! Definitely a keeper for the holiday season!
I’m not sure about sweet potatos and marshmallows… like why would you mix them? Not my thing.
Sweet potatoes and marshmallows are actually a classic combo! The sweetness of the marshmallows pairs perfectly with the earthy flavor of the sweet potatoes. Give it a try before judging!
This couz of my friend he said was delish, but I didn’t try yet.
I forgot to add the eggs and it was still delicious!! Who knew!? 😂
Wow! That’s impressive! 😂 I sometimes forget ingredients too, but didn’t think it could still taste good. Guess I’ll have to try it without eggs next time!
That’s crazy! 🤔 But eggs are kinda important. How did you not notice the texture was off? I wouldn’t trust it without ’em.
It’s just okay. My mom’s recipe is way better lol.
Quick and easy!! Made it for Thanksgiving and everyone loved it! Not hard to make at all. 🙌
I followed the recipe perfectly, but it was a bit runny. Any tips?
I don’t understand what’s so great about sweet potatoes… They taste funny to me. Tried this recipe, but no thanks.
It came out too sweet for my taste. Maybe less sugar next time?
I don’t see the hype, honestly. It’s just mashed sweet potatoes with sugar, right? Not my favorite dish.
Took way too long to bake! I think my oven is broken or something, because it was on for 50 minutes and still not done. 3 stars.
I had the same issue! My oven can be a pain too, sometimes it just takes longer for things to bake. Maybe check the temp with an oven thermometer?
50 minutes? That seems too long for this recipe. Maybe your oven runs cooler than it says? I’m not sure, but it happens to me a lot!
Sweet potatoes are so healthy! I feel like this dish is good for me.
I agree! Sweet potatoes are full of vitamins and fiber. This casserole sounds like a tasty way to enjoy them!
I don’t really understand why people put marshmallows in savory dishes. It’s strange. I think just plain sweet potatoes are better.
I get where you’re coming from! Marshmallows can be a bit odd in savory food. But trust me, they add a nice sweetness to the dish! It’s all about balance.
This recipe is a lie! It says sweet potatoes but tastes more like cake. What even is this?
So simple and delicious! My kids even ate it without complaining! Definitely making this again!
Sweet potato casserole my fav. ❤️❤️❤️
So comforting! The topping gets that perfect golden crunch with the marshmallows. I used a little less sugar and it still tasted great.
I don’t know how this is a casserole???? It’s more like a pudding! 🤷♂️
I just dont get why yall add sugar to sweet potatoes? They are sweet enough without it!
Too much sugar!!! My dentist is gonna hate me for this one! 😂
Haha, I know the feeling! But I think it’s worth it for that yummy taste! 😊
This casserole is to die for! The sweetness of the potatoes paired with the marshmallows is perfect. Definitely a hit at our family dinner!
I added nuts to mine, it was great! Highly recommend trying that! Full bellies here.
Pretty good, but mine came out a bit too sweet—next time I’ll cut the granulated sugar and maybe add a pinch more salt. Overall an easy bake.
It was too sweet for my taste, I think I might reduce the sugar next time.
Do I have to peel the sweet potatoes or no? 🙄
I was skeptical about the mini marshmallows, but wow! They really elevate the dish. A hit at our family gathering!
I threw in some pecans for crunch. Yummy!
I don’t know… sweet potatoes with marshmallows? Seems weird to me. I don’t think I’ll try it.
350F for 30-40 minutes was correct for my oven, but I’d watch it closely. Once the topping starts browning, it can go from golden to too dark quick.
This is the kind of casserole my grandma would approve of. The crumb topping + marshmallows is such a cozy combo. Definitely going into our rotation.
It was ok, but I think it needed more spices like cinnamon or nutmeg for flavor. Also, too sweet for my taste.
This was an easy recipe to follow. Took me a little longer than it said, but worth it. Yum!
Looks good, but how did yours turn out? I tried a similar recipe and it was too soggy. Maybe I did something wrong?
I’m so glad you enjoyed it! Sweet potato casserole is the best, especially with those marshmallows on top. It’s definitely a family favorite at Thanksgiving!
Meh, was expecting something better. Don’t think I’ll make it again.
I thought it was great! The sweetness from the marshmallows really made it special. Maybe you just didn’t bake it long enough?
I dunno, I think it’s delicious! But if u like less sweet stuff maybe this ain’t for you. Give it another shot?
Yum! Love the marshmallows on top! So creamy and sweet!
This is good, but the flour in the topping seemed off? Like I expected it to be more like a streusel. Maybe I did something wrong, but it was still tasty.
I followed the recipe but I didn’t really like it. The sweet potatoes were too sweet for my taste. Maybe less sugar next time?
Hmm. Casseroles are sus. Don’t trust something that looks that mushy. But I guess some folks like it sweet? Idk.
Sounds weird! Sweet potatos with marshmallows? That’s just wrong. Casseroles should be savory, not a dessert in disguise. No thanks!
I get it, mushy food isn’t for everyone! But trust me, this one is delicious! The sweetness of the potatos with the marshmallows is a game changer. 😋
Sweet potato + marshmallows feels kinda holiday-boring to me, not gonna lie. I’d rather roast them and make a less sugary topping. But it’s an okay recipe.
I don’t know about adding marshmallows… seems kinda weird. 🤨
This is my go-to recipe for Thanksgiving! Everyone loves it 😍
I agree! This recipe is the best 😋. Can’t wait for Thanksgiving to make it again!
Yummm! 😋
I followed the recipe but it turned out too soggy. I think less milk would help.
This was a hit at our family gathering! Everyone loved it. Will definitely make again!
This casserole is so sweet and delicious! Perfect for Thanksgiving.
OMG, I’m craving this!! So good, it should be illegal! Can’t wait to make it for Thanksgiving!
I don’t understand the marshmallows in this. Seems weird to me…but gave it a try. It was okay.
Delicious!!! I used regular potatoes instead of sweet ones, still pretty good!
This was the best sweet potato casserole I’ve ever had! Tons of flavor and the marshmallows on top were the cherry on top. Will definitely make again!
I totally agree! The marshmallows add such a nice touch. I’m glad you loved it!
I dunno, I thought it was too sweet. Maybe I just don’t like marshmallows that much. But glad you liked it.
My grandma made this every Thanksgiving. Brings back memories! 🍠❤️
Yummm! So good!
Absolutely! This is one of my favorite dishes. The marshmallows just take it to another level!
I don’t know, sweet potatoes with marshmallows? That sounds kinda weird to me.
This casserole was amazing! The sweetness was perfect, and the marshmallows on top added a nice touch. Will definitely make again!
I agree! The marshmallows really make it special. It’s like a hug in a dish! 😊
I don’t know, I think it might be too sweet. I prefer more savory casseroles.
Simply delicious! I can’t believe how easy it was to make!
Really? This recipe is super sweet. I thought it was too much sugar for my taste!
I’m so glad you liked it! It’s one of my favorites too. Can’t wait to make it again!
This casserole is a hit at our family dinners! Everybody loves it! 😍
This sounds delicious! I can’t wait to try it for Thanksgiving! 🦃
I mean, it was alright. But I’m more of a savory side person, not too keen on the sweetness. Kinda feels like dessert, not a side dish.
I made a different recipe last year and it was better, sorry!
That’s okay! Everyone has their own taste. What recipe did you try? Maybe I can check it out!
Yum!!! I replaced the marshmallows with nuts cos I dudnt have any, but still turned out great. Thanks for the recipe!
Made this for Thanksgiving and it disappeared fast. The topping was perfectly golden and the sweet potatoes tasted super rich. I added a pinch more salt just because, but overall spot on!
I followed the recipe exactly and it came out okay, but a bit too sweet for my taste. Next time I’ll cut the granulated sugar in half and maybe add some pecans.
I followed it mostly, but my crumb topping clumped weird and didn’t spread nicely. Still tasted fine though. Might’ve been the brown sugar humidity?
I think this is too sweet for me. Do people really eat this for dinner? Not for me 🙁
Why so much sugar? Sweet potatoes are already sweet!!!
Wait.. do you mash the skin too? I’m confuse. Help!
OMG, this is the best recipe ever! I could eat the whole dish by myself! 🤤
I totally agree! This casserole is like a hug in a dish! 🥰
I think my topping got a little clumpy because I used melted butter that was too hot. Still tasted good though—just more like sugary bits than crumbly topping.
Soo delicious! My kids devoured it! Will add more marshmallows next time.
recipe was ok, but I used honey instead of sugar and it turned out different. Still good tho.
IDK why people like sweet potatoes so much. Is it really a good side dish?
This was amazing! My family loved it, especially the marshmallows on top.
I don’t have brown sugar, can I just use white sugar? Asking for a friend.
The measurements are kinda confusing: two times butter melted (1/4 cup each) and then marshmallows on top—still not bad, just kinda sweet. I would reduce marshmallows next time.