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Creamy Sweet Potato Casserole Recipe with Easy Caramelized Marshmallow Topping

creamy sweet potato casserole - featured image

A comforting and creamy sweet potato casserole topped with golden caramelized marshmallows, perfect for holidays or cozy dinners. This easy recipe combines smooth sweet potatoes with a lightly toasted marshmallow topping for a crowd-pleasing side dish.

Ingredients

Scale
  • 3 large sweet potatoes (about 3 pounds / 1.4 kg), peeled and chopped
  • 6 tablespoons (85g) unsalted butter, softened
  • 1/3 cup (65g) packed brown sugar
  • 1/2 cup (120ml) heavy cream (or full-fat coconut milk for dairy-free)
  • 1 teaspoon pure vanilla extract
  • 1 teaspoon ground cinnamon
  • 1/4 teaspoon ground nutmeg
  • 1/2 teaspoon salt
  • 2 cups (about 100g) large marshmallows (mini or regular sized)
  • Optional: 1/2 cup chopped pecans or walnuts
  • Optional: 1/4 teaspoon ground ginger

Instructions

  1. Peel and chop the sweet potatoes into roughly 2-inch chunks. Place in a large pot and cover with cold water. Bring to a boil over high heat, then reduce to medium and simmer for 20-25 minutes until tender. Drain well.
  2. Transfer drained sweet potatoes to a large mixing bowl. Mash with a hand mixer or potato masher until smooth and creamy, about 3-5 minutes with a hand mixer.
  3. While still warm, add softened butter, brown sugar, heavy cream, vanilla extract, ground cinnamon, ground nutmeg, and salt. Mix well until fully incorporated and creamy.
  4. Spoon the sweet potato mixture into a greased 9×13 inch casserole dish, smoothing the top evenly.
  5. Evenly sprinkle marshmallows over the sweet potato layer. If desired, sprinkle chopped pecans or walnuts for extra crunch.
  6. Place casserole under the oven broiler on high, 4-6 inches from heat. Broil for 2-4 minutes, watching closely until marshmallows puff and turn golden brown. Alternatively, use a kitchen torch to toast marshmallows evenly.
  7. Let casserole rest for 5 minutes after removing from oven to set topping and keep interior warm. Serve warm.

Notes

Mash sweet potatoes while warm for smooth texture. Watch marshmallows carefully when broiling to avoid burning. Rest casserole after broiling to let topping set. Optional nuts add crunch. For dairy-free, substitute coconut milk and vegan butter, and use dairy-free marshmallows.

Nutrition

Keywords: sweet potato casserole, marshmallow topping, holiday side dish, Thanksgiving recipe, creamy sweet potatoes, caramelized marshmallows, comfort food