Southern Sweet Potato Casserole Recipe
If you’ve ever wished for a comforting side dish that sings with sweet, nutty warmth and earns a permanent spot on your holiday table, this Southern Sweet Potato Casserole is exactly what you need. It’s a beautiful balance of creamy mashed sweet potatoes blended with just the right amount of sugar and vanilla, topped with a buttery, crunchy pecan streusel that adds irresistible texture and flavor. Every bite bursts with nostalgia and heart, making it a beloved classic that never fails to bring smiles and seconds at any family gathering or Sunday supper.

Ingredients You’ll Need
The magic behind this Southern Sweet Potato Casserole lies in its simplicity. Each ingredient is thoughtfully chosen to bring out the best in flavor and texture—from the velvety smooth sweet potatoes to the rich, nutty topping that adds a delightful crunch. Here’s what you’ll gather before you start baking:
- 3 cups sweet potatoes: The creamy base of the casserole, naturally sweet and packed with nutrients.
- 1/2 cup sugar: Adds a touch of sweetness that complements the earthiness of the sweet potatoes.
- 1/2 cup butter: Brings richness and moisture to the sweet potato mixture.
- 2 eggs, beaten: Helps bind everything together for a smooth, fluffy texture.
- 1 teaspoon vanilla: A subtle flavor enhancer that adds warmth and depth.
- 1/3 cup milk: Keeps the mixture creamy without being too heavy.
- For the topping: You’ll need 1/3 cup melted butter, 1 cup light brown sugar, 1/2 cup flour, and 1 cup chopped pecans to create that perfect crunchy finish.
How to Make Southern Sweet Potato Casserole
Step 1: Prepare the Sweet Potatoes
Start by boiling the sweet potatoes until they’re fork-tender, which usually takes about 20 minutes. Then drain and mash them thoroughly while they are still warm. This ensures a smooth, creamy texture and sets the stage for the luscious filling you’re about to create.
Step 2: Mix the Casserole Base
Into your mashed sweet potatoes, beat in the sugar and butter while it’s still warm so the butter melts nicely. Add the eggs, vanilla, and milk, continuing to mix until everything is perfectly combined. This step makes the casserole rich but fluffy, with just the right sweetness and a hint of vanilla aroma that’s simply irresistible.
Step 3: Prepare Your Baking Dish
Spread the sweet potato mixture evenly into a well-greased 13×9 inch baking dish. This even layer ensures every bite offers that silky smooth potato base that we all love in a Southern Sweet Potato Casserole.
Step 4: Make the Topping
For the topping, melt butter and mix it with the brown sugar, flour, and pecans until you have a crumbly, nutty mixture. This topping will bake into a crunchy, caramelized coat that perfectly contrasts the soft sweet potato beneath.
Step 5: Bake to Perfection
Sprinkle the pecan topping evenly over the sweet potato layer and bake your casserole in a preheated 350-degree oven for 25 minutes. When it comes out, the topping should be golden brown and crisp, while the filling remains warm and velvety—a match made in comfort food heaven.
How to Serve Southern Sweet Potato Casserole

Garnishes
Elevate your Southern Sweet Potato Casserole with a few simple garnishes like a sprinkle of freshly chopped pecans or a light dusting of cinnamon. These finishing touches add extra aroma and a bit of visual flair, turning a classic dish into something truly special on the table.
Side Dishes
This casserole pairs wonderfully with roast turkey, glazed ham, or even a simple green salad for a lighter contrast. Classic Southern fare such as collard greens or cornbread also complements the dish perfectly, rounding out a meal that’s satisfying and soul-warming.
Creative Ways to Present
For a fun twist, try serving individual portions in ramekins topped with a small scoop of whipped cream or branded pecan halves as a fancy garnish. Alternatively, layer it as a sweet potato trifle by alternating layers of casserole and candied pecans for an eye-catching holiday centerpiece.
Make Ahead and Storage
Storing Leftovers
Leftover Southern Sweet Potato Casserole stores beautifully in the refrigerator. Just cover it tightly with plastic wrap or foil and consume within 3-4 days for the best taste and freshness. The flavors actually deepen as it sits, so leftovers are a treat in their own right!
Freezing
If you want to prepare this casserole ahead of time, freezing is a great option. Assemble the casserole but don’t bake it yet. Wrap it securely in foil and freeze for up to 2 months. When you’re ready, thaw overnight in the fridge, then bake as usual, adding a few extra minutes to cooking time as needed.
Reheating
To reheat, pop individual servings or the whole casserole into a 350-degree oven until warmed through and the topping regains its crunch. Microwaving works in a pinch but may soften the topping, so if you love that crisp crust, the oven is your best bet.
FAQs
Can I use canned sweet potatoes instead of fresh?
While fresh sweet potatoes give the best texture and flavor, you can use canned sweet potatoes in a pinch. Be sure to drain them well and adjust the sugar and butter slightly, as canned versions tend to be moister and sometimes sweeter.
Is it possible to make this casserole vegan?
Yes! Substitute vegan butter and use a flax egg (1 tablespoon flaxseed meal mixed with 3 tablespoons water) instead of regular eggs. Use a plant-based milk like almond or oat milk, and you’ll maintain the creamy texture with a plant-friendly twist.
What type of pecans work best for the topping?
Fresh, chopped pecans give the best crunch and flavor. If you only have whole pecans, simply chop them coarsely. Toasting the pecans lightly before mixing them into the topping can also enhance their nutty aroma.
Can I add marshmallows on top?
Absolutely! Some families like adding mini marshmallows during the last 5 minutes of baking for a golden, gooey topping. It adds sweetness and a fun texture but isn’t traditionally part of the Southern Sweet Potato Casserole flavor profile.
What’s the best way to get the topping perfectly crispy?
Make sure your butter is fully melted and the topping is well mixed before spreading it evenly. Bake uncovered so moisture can escape, allowing the brown sugar, flour, and pecans to caramelize and crisp up beautifully.
Final Thoughts
I can’t recommend the Southern Sweet Potato Casserole enough—it’s one of those dishes that feels like a warm hug on a plate. Whether you’re sharing it at a holiday feast or enjoying it as a cozy comfort food on any day, this casserole brings joy and satisfaction in every bite. Give it a try, and you might just find yourself making it a beloved tradition too!