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Easy Sweet Potato Casserole

This easy sweet potato casserole is a holiday classic of mashed sweet potatoes flavored with cinnamon and brown sugar, topped with toasted marshmallows.
Makes:10 servings


  • 6 large sweet potatoes, peeled and cut into chunks
  • 1 cup white sugar
  • ½ cup brown sugar
  • 2 tablespoons ground cinnamon
  • 1 tablespoon butter, softened
  • 1 cup miniature marshmallows, or as needed


Prep:10 mCook:50 mReady:1 h
  1. Place sweet potatoes in a large pot and cover with salted water; bring to a boil. Reduce heat to medium-low and simmer until tender, about 20 minutes; drain.
  2. Preheat the oven to 375 degrees F (190 degrees C). Grease a deep casserole dish.
  3. Mash potatoes with a potato masher in a bowl until no large lumps remain. Stir in both sugars, cinnamon, and butter until well combined, then transfer to the prepared casserole dish. Cover with a layer of miniature marshmallows.
  4. Bake in the preheated oven until marshmallows are browned, about 30 minutes.

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