Sweet Potato Casserole with Pecan Streusel is a beloved dish that graces many holiday tables, especially during Thanksgiving and Christmas. Creamy, smooth mashed sweet potatoes form the base, lightly sweetened and spiced with cinnamon, nutmeg, and vanilla. On top, a golden-brown streusel made from butter, brown sugar, and chopped pecans adds a delightful crunch and a nutty, caramelized flavor that contrasts beautifully with the soft interior.
This casserole is more than just a side dish – it often feels like dessert disguised as dinner. The natural sweetness of the sweet potatoes is enhanced by a touch of sugar and warm spices, while the pecan topping provides texture and richness. Some versions include a splash of orange juice or zest for brightness, or a bit of bourbon for depth and complexity. Whether baked in a deep dish or spread into a shallow pan for extra topping, this dish brings warmth and comfort in every bite.
Its roots in Southern cooking give it a nostalgic charm, and its versatility allows it to shine alongside roasted turkey, glazed ham, or even as part of a vegetarian spread. While some families prefer marshmallows on top, the pecan streusel offers a more grown-up and flavor-forward alternative that appeals to a wider range of palates.
Sweet Potato Casserole also holds up well when made ahead, making it ideal for busy holiday meal prep. Reheated, it tastes just as good, if not better, the next day. Leftovers can be served with breakfast or as a sweet side for lunch, and they’re even tasty straight from the fridge.
From its smooth, spiced filling to the buttery, crisp topping, Sweet Potato Casserole with Pecan Streusel is a dish that balances decadence with wholesomeness. It’s a time-honored favorite that invites second helpings and brings a sense of home and celebration to the table.
Ingredients
- 4 cups sweet potatoes peeled and cubed
- 1/2 cup granulated sugar
- 2 large eggs beaten
- 1/2 cup butter melted
- 1/2 cup milk
- 1 teaspoon vanilla extract
- 1/2 cup pecans chopped
- 1/2 cup brown sugar
- 1/3 cup all-purpose flour
- 1/3 cup butter softened
Instructions
- Preheat the oven to 350°F (175°C).
- In a large pot, boil the sweet potatoes until tender, about 20 minutes. Drain and mash them.
- In a large bowl, combine the mashed sweet potatoes, granulated sugar, beaten eggs, melted butter, milk, and vanilla extract. Mix well.
- Transfer the sweet potato mixture into a greased baking dish.
- In a separate bowl, mix the chopped pecans, brown sugar, flour, and softened butter to form the streusel topping.
- Sprinkle the pecan streusel evenly over the sweet potato mixture.
- Bake in the preheated oven for about 30-35 minutes or until the topping is golden brown.
- Serve warm and enjoy!
Nutrition
I don’t know about this recipe… Sweet potatoes and sugar? Seems kinda odd to me. I might stick with normal potatoes for my casseroles.
This recipe is amazing! The pecan topping really adds a nice crunch to the dish. I made it for Thanksgiving and everyone loved it!
This casserole was everything I hoped for! The sweetness was spot on and the pecans added a nice crunch. Highly recommend!
I’m glad you enjoyed it! I’m thinking of trying this recipe for Thanksgiving. Do you think it would work with walnuts instead of pecans?
Sounds good but why’s everyone raving about pecans? They’re just nuts, right? Can you really taste the difference?
I found it too sweet! I think I might reduce the sugar next time. Also, I used walnuts instead of pecans because that’s what I had.
I guess it really depends on personal taste! I like it a bit sweeter myself, but walnuts are a great swap! Hope it turns out good next time!
Not bad, but the texture was kinda gummy? Maybe I mashed too aggressively or didn’t drain long enough after boiling. Flavor was great, just needs tweaking.
Pretty good, but mine came out a bit too sweet. Next time I’ll cut the granulated sugar in half or reduce the brown sugar in the streusel. Still worth making though.
Y’all, this is like a sweet potato pie without the crust! Love the nuts on top! 😍
I totally agree! The pecans really do add that nice crunch! This dish is so good, I can’t stop eating it! 😋
Sweet potato pie without crust? Sounds off to me. Why not just make pie then? Guess people got different taste…
Super yummy! My kids devoured it, even the picky eaters! Thanks for sharing!
I tried this and my kids just picked the pecans off! Not a fan of sweet potatoes. Maybe less sugar next time?
So glad to hear your kids loved it! It’s always a win when picky eaters enjoy something healthy! 😊
Made this for Thanksgiving last year—so cozy and the streusel is legit. I swapped in maple syrup for some of the sugar and it still worked great.
That sounds perfect for Thanksgiving—so glad the maple swap worked! 🍁 I love that you still kept the streusel flavor. Did you notice it getting a bit darker/fudgier on top?
Was okay, but my topping didn’t get golden brown. What did I do wrong? 🙁
I’m not sure about using sweet potatoes…they taste funny to me. Should I try it?
Not sure about the 1/3 cup flour in the streusel—mine seemed dry, like sand. Still tasty though, just more crumbly than I expected.
That makes sense—1/3 cup flour can definitely make streusel feel a bit dry/sandy depending on how soft your butter is and how chopped the pecans are. I’ve had it happen when the butter isn’t quite creamy. Next time you could try adding a spoon or two more butter (or even a tiny splash of milk) to get it to clump better.
I thought it was too sweet for my taste. Maybe cut down on sugar next time?
Meh, not what I expected. The texture was off. Should I have used less milk?
Sweet potatoes + pecans = my fave! Will make this every Thanksgiving!
This recipe is fantastic! My family loved it, especially the pecan topping. Definitely a keeper.
Not gonna lie, I was skeptical about mixing milk + melted butter into mashed sweet potatoes. But it came out creamy, not greasy.
This casserole is a game changer! The pecan topping adds such a nice crunch. My family loved it.
Is it really that great? Sounds a little too sweet for my taste.
I totally agree! The pecan topping really takes it to the next level! 😍
Why use brown sugar when regular sugar is the same? Idk, seems pointless lol.
The instructions are fine, but “golden brown” took me longer than 35 minutes. I think ovens vary—mine needed almost 45. After that it was great.
Pretty good, but mine was a little too runny even after baking. I think my sweet potatoes were more watery than usual. Next time I’ll mash a bit longer or drain more.
My mom used to make this every holiday! It always brings back memories.💕
Not gonna lie, 1/2 cup butter + 1/3 cup butter feels like a lot. Still delicious, just super rich. Would cut butter next time.
I don’t think it’s “too much” butter—casserole needs fat for the texture. But 1/3 cup + 1/2 cup is confusing; why not just say 5/6 cup total? Also I’m pretty sure you bake it longer than 30-35 min for sweet potatoes to set.
Totally agree—between the melted butter in the filling (1/2 cup) and the streusel (1/3 cup) it’s definitely a butter bomb 😅 Still sounds amazing though. I’d probably keep it but reduce a bit next time like you said.
This was pretty good but I mixed up the eggs and flour ratio. Oops!
2 large eggs seems like a lot? I worried it would turn into like custard, but it actually held together well. Next time I might try one egg just to test.
Totally disagree on reducing eggs. Sweet potato casseroles need that binding or the texture gets watery. But testing with 1 egg next time could be fine if you watch it closely.
Yeah I used to think 2 eggs was a lot too, but honestly sweet potato is pretty forgiving. Glad yours held together—custard worry is totally real though.
Mine turned out kind of dense in the middle—still tasty though. I think I mashed the sweet potatoes a bit too roughly and maybe needed a touch more milk.
Nice recipe, but I used coconut oil instead of butter. Still turned out fine.
Honestly, I found it too sweet. Maybe cut down on the sugar next time. 🤔
I agree! It was way too sweet for my taste too. Maybe next time I’ll try half the sugar. 😅
Idk, mine got dry around the edges even though the topping was golden. Maybe my baking dish was too shallow? Still ate it all though.
This turned out so comforting! The streusel is sweet and crunchy, and the sweet potatoes stay nice and creamy. I used toasted pecans and it bumped the flavor a lot.
Absolutely delicious! This recipe is a hit at every family gathering. I will make it again for sure!
I’m glad to hear that! This casserole is such a crowd-pleaser. Have you tried adding marshmallows on top? It’s a game changer!
I dunno about this… sweet potatoes with sugar? Sounds weird to me. My family likes it savory.
I’m not a big sweet casserole person, but this one surprised me. The streusel is the star—crunchy and buttery. Would make again for sure.
I’m skeptical of casseroles with lots of sugar, but wow. This was surprisingly balanced once baked. The golden topping helped a lot.
I didn’t have pecans, so I used walnuts. Wasn’t as good, but still edible. Next time I’ll follow the recipe properly.
Sweet potato casserole is just gross. Don’t understand the hype. 🤷♂️
I thought this recipe was a bit complicated for a newbie cook like me. Had to look up what ‘medium’ meant in eggs. But it turned out alright.
The streusel is kinda crumbly—like it doesn’t really “stick” unless you press it down. I added an extra splash of melted butter and it helped.
Made this for Thanksgiving and it was a hit—sweet, cozy, and the pecan topping actually adds texture (not just sweetness). Followed the bake time and it came out perfectly golden.
This is delicious! I made it for Thanksgiving and everyone asked for the recipe. The mashed sweet potatoes set really nicely after baking.
Thank you! Love hearing the mashed sweet potatoes set up nicely after baking—exactly what I was hoping for. Glad everyone wanted the recipe!
Meh. Too rich for me. :/
Pretty solid comfort food. I did need to bake 10 more minutes to get the center fully set, but the flavor was great and not overly sweet.
This recipe is amazing! We made it for Thanksgiving and everyone went crazy for it! Definitely a keeper! 🍠🥳
Made this for Thanksgiving and it was a hit! Way better than those canned ones I used to make.
5 stars for the vibe alone. It’s warm, sweet, and the pecans crunch a little. I’ll make it again.
So easy! I mashed the sweet potatoes with a hand masher and it turned out fine. Family asked for seconds lol.
I don’t bake much, so I was worried about the streusel. Turns out it’s easy—just mix and sprinkle. I used a little less butter in the streusel, but it still browned nicely.
This is delicious! I subbed walnuts for the pecans and it still worked. The vanilla really helps. Family asked for seconds.
Could be better if the streusel was more evenly distributed. I got random thick clumps and a few bare spots. Still tasted nice!
Totally get that—my first try had the same “clumps vs bare spots” thing. Next time I’m going to crumble the streusel a bit more (mix until it looks like small pebbles) and maybe sprinkle in two layers so it doesn’t all land in one area. Glad it still tasted nice though!
Made this for Thanksgiving and it disappeared fast. The pecan streusel is such a good touch—super cozy and not too heavy.
I replaced pecans with almonds, and it still tastes good. Just an idea for those allergic to nuts.
That’s a great idea! I’m allergic to nuts too, so I’ll definitely try almonds next time.
Almonds? Really? They taste way different than pecans. Hope it doesn’t ruin the recipe.
I don’t know, it was just too sweet for my taste. Maybe I added too much sugar? Not for me.
Need simpler recipes for people like me! Can it be made in the microwave???
I hear ya! Sometimes these recipes are way too complicated. And microwaving sounds quicker. Could work, right?
Two thumbs up! Actually wait—5 stars. lol. I didn’t even have vanilla so I used almond extract and it was still amazing.
SO good. Sweet potatoes are like nature’s candy! Yum!!
Not gonna lie, 4 cups sweet potatoes is a lot. I ended up with extra filling after greasing my dish. Still good, just portion control next time!
The topping is kinda like a crumbly cookie thing (in a good way). I pressed it down slightly so it didn’t fall off when serving.
That’s exactly how I like it too—pressed down a bit so it stays crunchy when you scoop it. Did you find it got extra golden in spots?
Huh, I thought it was supposed to be more “saucy” under the topping. Mine kinda fell off though—maybe I didn’t press it enough. Still tasted good!
Honestly pretty solid. I used a little less sugar (like 1/4 cup) and it still tasted great. Next time I’ll toast the pecans first for more flavor.
I followed the steps and it was easy. Only thing: I think boiling time depends on potato size, so 20 minutes wasn’t quite enough for my cubes. I baked another 5 minutes and it was fine.
Hmm 20 minutes seems short to me. My cubes took like forever (maybe I cut them too big). Also I noticed it thickened more after baking—next time I’ll check doneness instead of the timer.
Totally agree—sweet potato cube size makes a big difference. I usually just keep boiling until a fork slides in easily. Love that you adjusted with the extra 5 min!
The texture was perfect after mashing. Next time I’ll chop the pecans a bit finer so the topping is less chunky, but flavor is on point.
This turned out *so* comforting. The pecan streusel is the star—crispy on top but still creamy underneath. I added a pinch of cinnamon too and it tasted like holiday season in a dish.
Yes!! I love when the streusel stays crunchy on top but the casserole is still creamy underneath. That pinch of cinnamon sounds perfect—definitely trying that next time. Thanks for the holiday-vibes tip!
1/3 cup flour in topping feels like too much flour. Mine tasted a bit bready. Would reduce next time.
I followed the recipe exactly but mine came out a bit dense. Tastes good though—maybe my mashed sweet potatoes were too wet. Still comforting!
Sounds like you did everything right! If your sweet potatoes were wetter than usual, that could definitely make it dense. Next time, try mashing a bit longer to steam off extra moisture (or let the mashed sweet potatoes cool uncovered) before mixing in the eggs/milk.
Dense but tastes good still? That’s basically a win 😅 Also I wonder if I got the same issue when my sweet potatoes weren’t fully drained—though I swear I “drained” them. Maybe add a tiny bit less milk next time? Not too much though or it’ll dry out.
I’m skeptical about casseroles with so much butter and sugar, but wow… it’s worth it. The eggs help it set nicely.
Pretty good, but mine turned out a little too sweet. I think 1/2 cup granulated sugar plus brown sugar in the topping is overkill—maybe cut one of them.
Okay but like, why does it call for brown sugar AND granulated sugar? Seems like overkill. 🤔
I think both sugars add different flavors and textures to the dish! Brown sugar gives it that nice caramel taste 😋.
Wait, sweet potatoes are actually good in dessert? I was sure it would be nasty. Turned out alright tho. 😅
This is good but I wish it had more spice. No cinnamon/nutmeg here—kinda plain for me. Still, my family ate it all.
I used 1% milk by accident and it still worked. The texture was slightly softer, but the streusel saved it. Easy to make too.
Good to know about the 1% milk! I always worry about substitutions changing the texture, but softer sounds totally fine—especially if the streusel is doing the heavy lifting. Glad it was still easy too!
My family devoured it in like 10 minutes. Sweet but not overly. I added a pinch of cinnamon to the mash and it made it taste even more like fall.
My topping was crumbly at first but then it kind of sank in. Could be my butter was too soft or I baked too short. Flavor still amazing.
Yum, this is the best sweet potato dish I’ve ever made! So easy and the flavors are perfect. 👍
Not sure about 1/2 cup granulated sugar plus 1/2 cup brown sugar—felt pretty sweet to me. Next time I’ll cut the sugar in half.
I like the idea, but I found it a little too sweet with both granulated and brown sugar. Next time I’ll cut the sugar down and maybe add a pinch of salt to balance.
I’m skeptical about baking sweet potatoes with both granulated + brown sugar and eggs… but wow, it works. Really comforting.
I didn’t peel the sweet potatoes (lazy), and it was still good. Also I used walnuts instead of pecans, worked fine. (Don’t judge 😅)
I followed it exactly and mine came out a bit watery—maybe I under-mashed the sweet potatoes? Still tasted good though, just not as thick as I hoped.
I used walnuts instead of pecans (because that’s what I had). It worked, but the flavor isn’t the same. Would definitely go back to pecans though.
I did walnuts once and thought it tasted fine tbh. Maybe your casserole got a little more “earthy” than “sweet”? Next time try adding an extra splash of vanilla or a pinch of cinnamon so it’s closer to pecan flavor.
Good to know! I’m always swapping nuts based on what’s in the pantry. Walnuts usually work, but yeah—pecans have that sweeter, buttery vibe. I’ll stick to pecans next time.
My topping clumped—maybe I didn’t use soft enough butter. Still tasted good, just looked rustic. I’d make again and just break up the butter more.
Hmm I don’t know… I feel like using melted butter in the casserole might make it wetter and then the topping clumps anyway? I usually bake without the flour in the streusel—more like just pecans + brown sugar + butter. Still, rustic is fine lol.
That makes sense—if the butter wasn’t softened enough, the streusel kind of turns into bigger clumps instead of a nice crumb. Next time, try breaking up the butter into smaller pieces before mixing, and it should stay more even. Glad it still tasted good though!
This is giving “dessert pretending to be a side.” Not bad! I just wish the streusel had more cinnamon or something, but the texture is nice.
Pretty sweet. Like, almost dessert sweet. If you’re not into that, maybe cut the granulated sugar a bit. Otherwise, nice flavor.