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Close-up shot of a serving of sweet potato casserole with golden-brown mini marshmallows on top, served on a plate. The warm casserole is placed on the white marble cooktop, ready to be enjoyed

Crock Pot Sweet Potato Casserole Recipe

This easy slow cooker sweet potato casserole blends creamy mashed sweet potatoes with butter, brown sugar, and cinnamon, topped with melty marshmallows for a classic holiday side dish.
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Prep Time 15 minutes
Cook Time 4 hours
Total Time 4 hours 15 minutes
Course Side Dish
Cuisine American
Servings 8
Calories 210 kcal

Equipment

  • Instant Pot
  • Mixing bowl
  • Potato masher or fork
  • Measuring cups and spoons

Ingredients
  

  • 4 sweet potatoes or 29ox can of yams cooked and mashed
  • ¼ cup butter melted
  • ¼ cup heavy cream
  • 2 eggs
  • ¼ cup brown sugar
  • 1 teaspoon cinnamon
  • 2 cups mini marshmallows

Instructions
 

Prepare Sweet Potatoes:

  • If using raw sweet potatoes, peel and cube them. Boil in water until tender, then mash.
    Close-up shot of raw sweet potatoes being peeled and cubed with a sharp knife on a wooden cutting board, beside a bowl of boiling water for cooking. Uncooked sweet potatoes and a bowl of mashed yams sit on the white marble cooktop
  • If using canned yams, drain and mash them.

Combine Ingredients:

  • Add the mashed sweet potatoes to the slow cooker.
    Close-up shot of mashed sweet potatoes being added to the slow cooker on the white marble cooktop. Melted butter, heavy cream, eggs, brown sugar, and cinnamon are stirred into the mixture with a wooden spoon.
  • Stir in melted butter, heavy cream, eggs, brown sugar, and cinnamon until fully combined.

Cook in Slow Cooker:

  • Cover the slow cooker with the lid and cook on Low for 4 hours.
    Close-up shot of a slow cooker cooking the sweet potato mixture on Low. The slow cooker sits on the white marble cooktop, filled with the creamy sweet potato mixture

Add Marshmallows:

  • Just before serving, top the casserole with mini marshmallows. Cover again and cook for an additional 3–5 minutes, or until the marshmallows begin to melt.
    Close-up shot of mini marshmallows being sprinkled on top of the sweet potato casserole in the slow cooker. The marshmallows are gently melting on top as the casserole cooks for a few more minutes, all on the white marble cooktop

Serve:

  • Serve the sweet potato casserole immediately while warm.
    Close-up shot of a serving of sweet potato casserole with golden-brown mini marshmallows on top, served on a plate. The warm casserole is placed on the white marble cooktop, ready to be enjoyed