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Close-up of sweet potato casserole topped with perfectly toasted mini marshmallows and pecans

Sweet Potato Casserole with Marshmallows


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  • Total Time: 45 minutes
  • Yield: 10-12 servings

Description

Sweet Potato Casserole with Marshmallows is a classic, comforting dish combining creamy mashed sweet potatoes blended with warm spices and brown sugar, topped with a crunchy pecan mixture and golden, toasted mini marshmallows. Perfect for holiday gatherings, this rich and sweet casserole delivers both texture and flavor in every bite.


Ingredients

  • 4 large sweet potatoes, peeled and chopped into large chunks (around 9 cups)
  • ½ cup unsalted butter, melted
  • 1 cup brown sugar
  • ½ teaspoon salt
  • ½ teaspoon cinnamon
  • 1 teaspoon vanilla extract
  • ¼ teaspoon nutmeg
  • 4 tablespoons unsalted butter, melted (for topping)
  • ⅓ cup brown sugar (for topping)
  • 2 tablespoons all purpose flour
  • ½ teaspoon salt (for topping)
  • 1¼ cups finely chopped pecan pieces
  • 10 oz mini marshmallows


Instructions

  1. Peel and cut sweet potatoes into large chunks and place in a large saucepan. Cover with water and bring to a boil.
  2. Boil until fork tender and fall apart easily.
  3. Drain and add back to the pan. Mash with a potato masher.
  4. Add butter, brown sugar, salt, cinnamon, vanilla extract, and nutmeg and mix until well combined.
  5. In a separate bowl, make the pecan topping by stirring together melted butter, brown sugar, flour, salt, and pecan pieces.
  6. Grease a 9×13 baking dish with cooking spray. Add sweet potato filling and spread evenly.
  7. Spread pecan topping evenly over sweet potatoes.
  8. Add mini marshmallows over the top in an even layer.
  9. Bake at 350°F for 25-35 minutes, until bubbly and marshmallows are golden brown.

Notes

Substitutions: Use coconut oil or margarine instead of butter for dairy-free options. Maple syrup can replace brown sugar for a different sweetness. Make-ahead: Prepare the sweet potato filling and pecan topping a day ahead, assemble just before baking. Store leftovers covered in the fridge for up to 3 days. Troubleshooting: If marshmallows brown too quickly, cover loosely with foil midway through baking to prevent burning.

  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Category: Side Dish
  • Method: Baking
  • Cuisine: American