Southern Maple Sweet Potato Casserole is a classic comfort dish that combines creamy, sweet mashed sweet potatoes with a crunchy pecan topping. The sweet potatoes are naturally rich and soft, and the addition of maple syrup gives it a warm, cozy sweetness that feels just right for any gathering or holiday table.
I love making this casserole because it’s simple but feels special every time. The maple syrup adds just the right touch of natural sweetness without overpowering the flavors, and the crunchy pecans on top bring such a nice contrast to the smooth, velvety sweet potatoes. It’s one of those dishes that everyone asks for seconds on, and it always makes me happy to share.
My favorite way to serve this is right out of the oven, while it’s still warm and the maple syrup smells amazing. I like to pair it with a simple roasted chicken or even as a sweet side during holiday dinners. It’s a dish that brings a little extra comfort and joy to the table, perfect for cozy family meals or special occasions.
Key Ingredients & Substitutions
Sweet potatoes: These are the heart of the dish. Choose firm, fresh sweet potatoes for the best flavor. If you can’t find them, you may try yams, but they’re less sweet and softer.
Maple syrup: Adds natural sweetness and a warm flavor. If you don’t have maple syrup, honey or agave syrup can work as substitutes though the taste will differ slightly.
Butter: Melted butter adds richness. You can substitute with coconut oil or vegan butter for a dairy-free version.
Pecans: They provide a nice crunchy texture contrast. Walnuts or almonds can be used instead if pecans are unavailable.
Mini marshmallows: These give a sweet, toasted top layer. For a dairy-free or vegan option, try plant-based marshmallows or skip entirely and add extra nuts or a crisp oat topping.
How Do I Get That Perfect Toasted Marshmallow Topping?
To get those marshmallows perfectly browned and gooey without burning, watch them closely. Here’s how:
- Place marshmallows on top evenly before baking.
- Bake uncovered so they can toast nicely.
- When marshmallows turn golden brown (about 25-30 minutes), you can switch to broil for 1-2 minutes for crispier tops—watch carefully to avoid burning.
- Alternatively, use a kitchen torch for precise toasting if you have one.
Patience here is key; the caramelized marshmallows add great texture and flavor, making the dish extra special.

Equipment You’ll Need
- Large pot – for boiling sweet potatoes until tender without crowding.
- Potato masher or fork – makes mashing sweet potatoes smooth and easy.
- Mixing bowl – to combine sweet potatoes with syrup, butter, and spices.
- 9×13-inch baking dish or oval casserole dish – roomy for even baking and marshmallow topping.
- Spatula or wooden spoon – to mix ingredients and spread the casserole evenly.
- Oven mitts – important for safely handling the hot baking dish.
Flavor Variations & Add-Ins
- Add cooked crumbled bacon on top for a salty crunch that pairs well with the sweetness.
- Mix in a teaspoon of ground ginger or cardamom for warm spice notes that add depth.
- Substitute pecans with toasted walnuts or almonds for a different nutty flavor.
- For a creamier dish, stir in a little cream cheese or coconut milk before baking.
Southern Maple Sweet Potato Casserole
Ingredients You’ll Need:
- 4 large sweet potatoes (about 3 pounds)
- 1/2 cup pure maple syrup
- 1/3 cup unsalted butter, melted
- 1/4 cup brown sugar, packed
- 1/2 teaspoon ground cinnamon
- 1/4 teaspoon ground nutmeg
- 1 teaspoon vanilla extract
- 1/4 teaspoon salt
- 1 cup chopped pecans
- 1 1/2 cups mini marshmallows
How Much Time Will You Need?
This tasty casserole takes about 15 minutes to prepare and roughly 25-30 minutes to bake. In total, plan for around 45 minutes from start to finish, including a few minutes to let it cool before serving.
Step-by-Step Instructions:
1. Prepare the Sweet Potatoes:
First, preheat your oven to 350°F (175°C) and grease a 9×13-inch baking dish. Peel and chop the sweet potatoes into large chunks. Boil them in a pot of water until they’re very tender, about 15-20 minutes. Drain well.
2. Mash and Mix:
In a large bowl, mash the sweet potatoes until smooth. Then mix in the melted butter, maple syrup, brown sugar, cinnamon, nutmeg, vanilla extract, and salt. Stir well to combine everything into a creamy, sweet mixture.
3. Assemble and Bake:
Spread the sweet potato mixture evenly in your baking dish. Sprinkle the chopped pecans on top, then cover with mini marshmallows. Bake uncovered for 25-30 minutes until the marshmallows are golden and the casserole is heated through. For a crispier, toasted marshmallow top, you can broil it for 1-2 minutes at the end. Just watch carefully to avoid burning.
4. Serve and Enjoy:
Let the casserole cool for about 5 minutes before serving. Enjoy the delightful combination of creamy sweet potatoes, sweet maple flavor, crunchy pecans, and gooey toasted marshmallows!
Can I Use Frozen Sweet Potatoes for This Casserole?
Yes, you can! Just be sure to fully thaw and drain any excess moisture before mashing to avoid a watery casserole. Fresh sweet potatoes will give the best texture, but frozen works in a pinch.
How Should I Store Leftovers?
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently in the oven or microwave, covering to keep the marshmallows soft.
Can I Make This Dish Ahead of Time?
Absolutely! Prepare the casserole up to step 7, then cover and refrigerate for up to 24 hours. When ready, add marshmallows and bake as directed.
What Can I Substitute for Pecans?
If you’re allergic or don’t have pecans, walnuts or almonds make great substitutes. You can also skip nuts altogether for a nut-free version, though you’ll lose the crunchy contrast.


