Slow-Cooker Sweet Potato Casserole

Recipe Ingredients

Sweet potato casserole is such a cozy, crowd-pleasing side dish! Here’s what you’ll need to make it in your slow cooker.

Sweet Potatoes: We love cooking with sweet potatoes, because they’re naturally sweet, rich, and creamy. They’re the perfect base for the warm spices, brown sugar, and buttery toppings that make the holiday season so special.

Brown Sugar: This adds a deeper, richer flavor than white sugar—thanks to its molasses content—and enhances the natural sweetness of the sweet potatoes.

Pumpkin Pie Spice: Not only is this spice combo easy to find at grocery stores, but its irresistible seasonal flavor also sets this recipe apart from other traditional sweet potato casseroles.

Other Ingredients: We add butter for richness and marshmallows because it wouldn’t be a sweet potato casserole without them! A little salt to balance the sweet, plus vanilla to bring depth to all the flavors, and this casserole is ready to go.

How to Make Slow Cooker Sweet Potato Casserole

This slow cooker sweet potato casserole couldn’t be easier to make. Just follow a few simple steps, and you’ll have a delicious side dish with next-to-no effort. Here’s a quick overview—but check out the full list of ingredients and directions below.

1. Season the Potatoes

Start by melting together brown sugar, butter, pumpkin pie spice, salt, and a splash of water in the microwave to create a rich, spiced sauce. Stir in vanilla to add depth, then toss cubed sweet potatoes with the sauce until they’re thoroughly coated.

2. Transfer to the Slow Cooker

Add the sauced potatoes to your slow cooker, and cook on high for a few hours until the sweet potatoes are tender and full of flavor.

3. Add the Marshmallows

Just before serving, top the potatoes with marshmallows and briefly cover with the slow-cooker lid until they’re soft and slightly melted.

This slow cooker sweet potato casserole is the perfect holiday side dish to bring to parties, too. Start the cooking process at home, and once the potatoes are cooked, just bring the whole slow cooker with you! When you arrive, set it to warm, and add the marshmallows right before it’s time to eat.

Storing and Reheating

Got leftover sweet potato casserole? Don’t let it go to waste! Here’s how to keep it fresh.

Refrigerator

Store in an airtight container in the fridge for up to 3 days. We wouldn’t recommend storing your leftover casserole in the freezer as it won’t thaw and reheat well.

Reheating

Microwave individual servings for 1 to 2 minutes until heated through. Then, add a few more marshmallows to the top. The residual heat will melt them perfectly.