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Close-up of the finished Sweet Potato Casserole, with marshmallows soft and puffy on top, slightly golden. The dish looks rich, creamy, and inviting, ready to be served

Crockpot Sweet Potato Casserole with Canned Yams

This slow cooker sweet potato casserole is a perfect blend of buttery sweetness topped with gooey marshmallows. Ideal for holidays or cozy meals, it’s easy, indulgent, and crowd-pleasing!
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Prep Time 5 minutes
Cook Time 3 hours 15 minutes
Total Time 3 hours 20 minutes
Course Side Dish
Cuisine American
Servings 8
Calories 531 kcal

Equipment

  • Slow Cooker
  • Cooking spray
  • Measuring Cups

Ingredients
  

  • cooking spray
  • 2 29 ounce cans sweet potatoes, drained
  • ⅓ cup butter cut into 1/4-inch pieces
  • ¾ cup light brown sugar
  • 1 16 ounce package miniature marshmallows

Instructions
 

  • Spray the inside of the slow cooker with cooking spray to prevent sticking.
  • Drain the sweet potatoes and place them into the slow cooker.
    Close-up of two cans of drained sweet potatoes being placed into the slow cooker. The sweet potatoes are slightly mashed and arranged neatly, with some pieces visible and whole, creating a rich, hearty base. The focus is on the soft, tender sweet potatoes in the slow cooker.
  • Arrange butter pieces evenly over the sweet potatoes.
    Close-up of small pieces of butter being arranged evenly over the sweet potatoes inside the slow cooker. The butter pieces are cut into small squares, scattered evenly, and starting to melt slightly into the warm sweet potatoes.
  • Sprinkle the brown sugar on top.
    "Close-up of light brown sugar being sprinkled evenly over the sweet potatoes and butter in the slow cooker. The sugar falls gently over the mixture, adding a golden, rich texture to the top
  • Cook on High for 3 to 3 ½ hours.
    Close-up of the slow cooker lid closed, with the casserole cooking on High for 3 to 3 ½ hours. The slow cooker is gently steaming, indicating the warmth inside, with the texture of the sweet potatoes becoming softer and richer
  • Add marshmallows and cook for an additional 15 minutes until soft and puffy.
    Close-up of miniature marshmallows being added to the cooked sweet potatoes inside the slow cooker. The marshmallows are starting to soften and puff up, creating a soft, inviting texture on top of the casserole
  • Serve warm and enjoy this sweet, comforting dish!
    Close-up of the finished Sweet Potato Casserole, with marshmallows soft and puffy on top, slightly golden. The dish looks rich, creamy, and inviting, ready to be served