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A Must-Have Thanksgiving Side Dish
If you're looking for a Thanksgiving recipe that delivers both comfort and convenience, Crockpot Sweet Potato Casserole is exactly what your holiday table needs. This classic dish, made in the slow cooker, brings out the natural sweetness of sweet potatoes while freeing up oven space on one of the busiest cooking days of the year.//
With warm spices, gooey marshmallows, and crunchy pecans, this recipe is the perfect balance of sweet and savory—and couldn’t be easier to prepare.
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Why You’ll Love This Crockpot Sweet Potato Casserole
Saves Oven Space
One of the best parts about this recipe is that it cooks entirely in the Crockpot. That means your oven stays free for turkey, pies, or whatever else you're juggling on Thanksgiving.
Full of Holiday Flavor
The sweet potatoes soak up brown sugar, cinnamon, vanilla, and a touch of nutmeg while they slow cook. Marshmallows and pecans on top add that classic Thanksgiving casserole flair.
Dietary-Friendly and Adaptable
This dish is naturally vegetarian and gluten-free. You can easily adapt it to be nut-free or dairy-free with simple swaps.
Ingredients You’ll Need
- 4 pounds sweet potatoes, peeled and cut into medium cubes
- 4 tablespoons melted butter (or vegan butter)
- 2 cups packed brown sugar (dark preferred)
- 1 teaspoon ground cinnamon
- ¼ teaspoon ground nutmeg (optional)
- ½ teaspoon pure vanilla extract
- Pinch of kosher salt
- 1 ½ cups mini marshmallows
- ½ cup whole pecans
- Cooking spray
Ingredient Notes
Use fresh sweet potatoes for the best flavor and texture. Dark brown sugar adds more depth, but light brown sugar works if that’s what you have. You can also use vegan marshmallows if needed.
How to Make Crockpot Sweet Potato Casserole
Step-by-Step Instructions
- Spray the Crockpot insert with cooking spray.
- Add cubed sweet potatoes to the slow cooker.

- In a medium bowl, whisk together melted butter, brown sugar, cinnamon, nutmeg (if using), vanilla, and salt.
- Pour the mixture over the sweet potatoes and stir to coat well.

- Cover and cook on high for 4 hours, stirring gently once an hour.
- After 4 hours, top with mini marshmallows and pecans.

- Cover and cook for another 10 minutes, until marshmallows are soft and melty.
Expert Tips for Best Results
Customize the Texture
If you like your casserole smooth, use a potato masher after cooking and before adding the toppings. For a chunkier style, leave the sweet potatoes as is.
Stir Occasionally
Stirring the casserole once an hour during cooking ensures even texture and helps prevent sticking.
Broil for a Toasted Top (Optional)
If you want that golden marshmallow top, transfer everything to an oven-safe dish and broil for 1–2 minutes. Watch it closely.
Serving Suggestions
Perfect Pairings for Thanksgiving
This casserole pairs beautifully with:
- Roasted turkey
- Garlic green beans
- Cranberry sauce
- Classic stuffing
Presentation Ideas
Serve directly from the Crockpot for convenience or transfer to a large serving dish and sprinkle a little cinnamon on top for a festive finish.
Beverage Pairings
- Sparkling apple cider
- Spiced chai tea
- A light Riesling or Gewürztraminer if serving wine
How to Store and Reheat Leftovers
Storage Tips
Store leftovers in an airtight container in the fridge for up to 5 days. You can also freeze the base (without toppings) for up to 1 month.
Reheating Instructions
- Microwave: Reheat in 30-second intervals, stirring between each.
- Oven: Bake at 350°F for 10–15 minutes, covered with foil.
- Crockpot: Reheat on low, stirring occasionally, until warm.

Common Questions
Yes, you can prep the sweet potato mixture the day before. Store it in the fridge overnight and cook the next day.
Yes. Use a large (7-quart) slow cooker and add about 30–45 extra minutes of cooking time. Stir more frequently to prevent sticking.
Try a streusel topping made with flour, butter, and oats—or leave them off and enjoy a more savory twist.
Fun Variations to Try
Holiday Twists
Add chopped apples or dried cranberries for a Thanksgiving variation. A little orange zest can also brighten up the dish.
Dietary Swaps
- Use vegan butter and marshmallows to make it dairy-free
- Omit nuts or use seeds if avoiding tree nuts
Flavor Enhancements
Add a splash of maple syrup or a dash of ginger for deeper autumn flavor.
More Sweet Potato Recipes to Try
Sweet potatoes are incredibly versatile. Here are a few more ways to enjoy them this Thanksgiving season:
- Baked Sweet Potato Chips - Crispy and fun to snack on
- Garlic Honey Roasted Sweet Potatoes - A savory-sweet crowd favorite
- Sweet Potato Bites with Cheese - A perfect appetizer for holiday gatherings
Looking for more ideas? Save these to your Thanksgiving board on Pinterest - Bake With Lina
Final Thoughts
Crockpot Sweet Potato Casserole is the kind of dish that simplifies your holiday and still delivers on flavor. It's warm, nostalgic, and a favorite for all ages. Whether you're hosting Thanksgiving or bringing a dish to a friend’s house, this recipe is sure to impress. Give it a try this season and see why so many people make it year after year.



Crockpot Sweet Potato Casserole
- Prep Time: 25 minutes
- Cook Time: 4 hours
- Total Time: 4 hours 25 minutes
- Yield: 8 servings 1x
- Category: Side Dish
- Method: Slow Cooker
- Cuisine: American
- Diet: Vegetarian
Description
A delicious and easy Crockpot Sweet Potato Casserole perfect for Thanksgiving—frees up oven space and delivers classic sweet and melty flavor with marshmallows and pecans.
Ingredients
- Cooking spray
- 4 lb. sweet potatoes, peeled and chopped into medium cubes
- 4 Tbsp. melted butter
- 2 cups packed brown sugar
- 1 tsp. ground cinnamon
- ½ tsp. pure vanilla extract
- ¼ tsp. ground nutmeg (optional)
- Pinch kosher salt
- 1 ½ cups mini marshmallows
- ½ cup whole pecans
Instructions
- Grease slow cooker bowl with cooking spray and add sweet potatoes.
- In a medium bowl, combine butter, sugar, cinnamon, vanilla, nutmeg if using, and a pinch of salt. Whisk to combine.
- Pour over sweet potatoes and toss until they are fully coated. Cook on high for 4 hours, stirring every hour.
- Remove lid and top with marshmallows and pecans.
- Cover and cook on high about 10 minutes more or until marshmallows are melted.
Notes
Double the recipe for larger gatherings and cook on low for 6 hours. Use a potato masher for a smoother texture. For a toasty top, transfer to an oven-safe dish and broil marshmallows for 1-2 minutes. Store leftovers in the fridge for 3–5 days.
Nutrition
- Serving Size: 1 serving
- Calories: 562
- Sugar: 38g
- Sodium: 160mg
- Fat: 14g
- Saturated Fat: 5g
- Unsaturated Fat: 7g
- Trans Fat: 0g
- Carbohydrates: 105g
- Fiber: 6g
- Protein: 4g
- Cholesterol: 15mg











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