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Sweet Potato Casserole

This easy Sweet Potato Casserole is creamy, warmly spiced, and topped with golden toasted marshmallows for the perfect combination of soft and fluffy textures. Made with tender sweet potatoes, butter, brown sugar, cinnamon, and vanilla, it is a comforting side dish for Thanksgiving, Christmas, Sunday dinners, and family gatherings.
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Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
Servings: 8
Ingredients Method Notes

Ingredients
  

  • Sweet Potato Filling
  • 3 pounds sweet potatoes peeled and cubed
  • ½ cup unsalted butter melted
  • ½ cup brown sugar
  • ½ cup milk
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1 teaspoon ground cinnamon
  • ¼ teaspoon ground nutmeg
  • ½ teaspoon salt
  • Topping
  • 2 cups mini marshmallows
  • ½ cup chopped pecans optional
  • 2 tablespoons brown sugar optional

Method
 

  1. Preheat the oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish.
  2. Place the peeled and cubed sweet potatoes in a large pot and cover with water.
  3. Bring to a boil and cook for 15–20 minutes, or until the sweet potatoes are fork-tender.
  4. Drain the sweet potatoes thoroughly and transfer them to a large mixing bowl.
  5. Mash until mostly smooth.
  6. Add melted butter, brown sugar, milk, eggs, vanilla, cinnamon, nutmeg, and salt.
  7. Mix until creamy and well combined.
  8. Spread the sweet potato mixture evenly into the prepared baking dish.
  9. Sprinkle the mini marshmallows evenly over the top. Add chopped pecans if desired.
  10. Bake uncovered for 25–30 minutes, until the filling is hot and the marshmallows are golden.
  11. If the marshmallows brown too quickly, loosely cover the casserole with foil.
  12. Let the casserole rest for about 5 minutes before serving.

Notes

Drain the cooked sweet potatoes well to prevent a watery casserole.
Adjust the amount of brown sugar according to your preferred sweetness.
For an extra-smooth texture, beat the sweet potatoes with a hand mixer.
Add marshmallows just before baking if preparing the casserole ahead.
Watch the marshmallows closely during the final minutes because they can brown quickly.
For a less sweet version, reduce the brown sugar and use chopped pecans as the main topping.