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Slow Cooker Sweet Potato Casserole

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  • Author: Lidia
  • Prep Time: 15 minutes
  • Cook Time: 4 hours
  • Total Time: 4 hours 15 minutes
  • Yield: 8 to 10 servings
  • Category: Side Dish
  • Method: Slow Cooker
  • Cuisine: American
  • Diet: Vegetarian

Description

A cozy, creamy sweet potato casserole made in the slow cooker, featuring mashed sweet potatoes with a rich blend of spices and brown sugar, topped with a crunchy pecan topping and optional marshmallows.


Ingredients

  • 4 lb (approx. 1.8 kg) sweet potatoes, peeled and cut into 1‑inch cubes
  • ½ cup (100 g) dark brown sugar
  • ¼ cup (60 g) unsalted butter, melted
  • 1 tablespoon vanilla extract
  • 1 tablespoon water
  • 1 teaspoon ground cinnamon
  • 1 teaspoon pumpkin pie spice
  • ½ teaspoon salt
  • 3 tablespoons brown sugar (for topping)
  • 2 tablespoons unsalted butter, melted (for topping)
  • 2 tablespoons chopped pecans, toasted (for topping)
  • 2 cups mini marshmallows (optional)
  • ½ cup pecans for sprinkling (optional)

Instructions

  1. Place the peeled and cubed sweet potatoes into the bowl of the slow cooker.
  2. In a separate bowl, whisk together the brown sugar, melted butter, vanilla extract, water, cinnamon, pumpkin pie spice, and salt until well combined.
  3. Pour the mixture over the sweet potatoes in the slow cooker and gently stir to coat evenly.
  4. Cover and cook on High for 3½ to 4 hours, or on Low for 6 to 8 hours, until the sweet potatoes are fork-tender.
  5. Use a potato masher or handheld mixer to mash the sweet potatoes to your desired consistency.
  6. In a small bowl, combine the topping ingredients: brown sugar, melted butter, and chopped pecans.
  7. Sprinkle the topping over the mashed sweet potatoes.
  8. If using marshmallows and extra pecans, sprinkle them on top now. Cover and cook on High for another 10–15 minutes until the marshmallows are melted and the topping is set.
  9. Serve warm directly from the slow cooker or transfer to a serving dish and garnish with extra pecans if desired.

Notes

  • Use a 5- to 6-quart slow cooker for best results.
  • Make ahead by prepping sweet potatoes and spice mixture the night before.
  • Omit nuts or substitute with walnuts for a nut-free version.
  • Use plant-based butter and vegan marshmallows for a dairy-free/vegan version.
  • For a browned topping, transfer to ovenproof dish and broil briefly.

Nutrition

  • Serving Size: 1 serving
  • Calories: 250
  • Sugar: 18g
  • Sodium: 150mg
  • Fat: 9g
  • Saturated Fat: 4g
  • Unsaturated Fat: 4g
  • Trans Fat: 0g
  • Carbohydrates: 40g
  • Fiber: 4g
  • Protein: 2g
  • Cholesterol: 15mg