This Crockpot Sweet Potato Casserole is a delicious side dish perfect for Thanksgiving and Christmas, yet easy enough for weeknight family dinners. With its creamy interior and gooey marshmallow topping, this casserole combines simple ingredients with the magic of slow cooking to create a mouthwatering masterpiece.
Raise your hand if you get excited about side dishes that don’t take up oven space! I know I do.
This crock pot sweet potato casserole is easy to make and sure to make your taste buds dance.
It is the perfect easy side for your Thanksgiving and Christmas table.
Looking for more ways to enjoy sweet potatoes? Don’t miss my Instant Pot mashed sweet potatoes, slow cooker sweet potatoes, roasted sweet potato salad, sweet potato quinoa salad, and sweet potato rice pilaf.
Ingredients & Substitutions
- Sweet Potatoes: I recommend using fresh sweet potatoes for thai recipe.
- Evaporated Milk: This little can packs a creamy punch that makes our casserole extra luxurious.
- Chicken Broth: For a vegetarian version, vegetable broth works just as well.
- Butter: Butter brings a rich depth of flavor. If you're dairy-free, a good quality plant-based butter will do the trick.
- Sea Salt: Feel free to use kosher or table salt if that's what you have on hand.
- Cinnamon: No cinnamon? Try nutmeg or allspice for a slightly different but equally delicious twist.
- Eggs: They help bind everything together and add a nice richness.
- Brown Sugar: It lends a caramel-like sweetness that pairs perfectly with the sweet potatoes. Maple syrup or honey can also be used as natural sweeteners.
- Mini Marshmallows: These little guys melt into a sweet, gooey topping that takes this casserole to the next level. If you're not a fan of marshmallows, a pecan streusel could be a tasty alternative. (Other nuts, such as walnuts or almonds, are also good options.)
Step by Step
For the full recipe with measurements, see the recipe card at the end of the post.
Tips and Tricks
- Prep Ahead: You can peel and cube your sweet potatoes the night before. Just store them in a bowl of water in the fridge to keep them from browning. It's a great time-saver, especially on busy days!
- Spice it Up: Our recipe calls for cinnamon, but don't be afraid to experiment with other warming spices like nutmeg or allspice. A teaspoon of vanilla extract or pumpkin pie spice are also fun twists. Even a pinch of cayenne can add a pleasant kick!
- Sweetness Level: Adjust the brown sugar to your taste. If you prefer a less sweet casserole, reduce the sugar. If you have a sweet tooth, feel free to add a bit more.
- Air Fryer Turkey Breast - This golden and juicy delight pairs beautifully with crockpot sweet potatoes casserole.
- Green Bean Casserole with Bacon - Our Green Bean Casserole with Bacon is a smoky, creamy dream come true.
- Loaded Mashed Potatoes - These are not just any mashed potatoes - they're packed with cheese, bacon, and green onions. Don't forget to serve them hot with a dollop of sour cream on top.
- Yukon Gold Mashed Potatoes - Try pairing them with a rich gravy or, for a lighter option, a drizzle of olive oil and a sprinkle of fresh herbs like rosemary or thyme.
- Picanha Roast - This Brazilian-style steak is a carnivore's paradise.
How do you make sweet potato casserole not watery?
To prevent a watery sweet potato casserole, be sure to drain and dry the cooked sweet potatoes fully before mashing them. Alternatively, you can skip boiling your sweet potatoes altogether by roasting them or making your sweet potato casserole in a slow cooker like we do here.
Additionally, ensuring your slow cooker is set on low instead of high can help reduce excess moisture.
Lastly, letting the casserole cool for a few minutes before serving can also help it set and become less watery.
How do you know when the sweet potato casserole is finished?
Your sweet potatoes are finished with their initial cooking stage when the potatoes are fork-tender and can be easily mashed.
When cooking sweet potato casserole in a crockpot, you can do a quick taste test to ensure the sweet potatoes are soft and the flavors have melded together. The casserole should be set, and the marshmallows should be slightly melted.
Storing Slow Cooker Sweet Potato Casserole
- Fridge: Store the casserole in an airtight container in the fridge for up to 4 days. Reheat in the microwave or oven before serving.
- Freezer: You can freeze leftovers of this crockpot sweet potato casserole recipe in an airtight container for up to 3 months. Before reheating, thaw it overnight in the fridge.
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- Slow Cooker: You slow cook sweet potato casserole with a traditional CrockPot or with a multi-cooker such as a NinjaPossible Cooker or Instant Pot Dutch Oven.
Crockpot Sweet Potato Casserole
- 3 pounds sweet potatoes peeled and diced
- 1 5-ounce can evaporated milk
- ¾ cup chicken broth
- 2 tablespoons butter
- 1 teaspoon sea salt
- 1 teaspoon cinnamon
- 3 eggs beaten
- ½ cup brown sugar
- 1 ½ cups mini marshmallows
- Place the cubed sweet potatoes in your slow cooker. Add the evaporated milk, chicken broth, butter, salt, and cinnamon.
- Cover, and cook on high for 3 hours or low for 6 hours, until the potatoes are soft.
- Using a potato masher, mash the sweet potatoes. Stir in the eggs and brown sugar.
- Top with the marshmallows. Cover and cook for 1 more hour on low.