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Old Fashioned Sweet Potato Casserole Recipe

4.8 from 162 reviews

This Old Fashioned Sweet Potato Casserole is a classic holiday side dish featuring tender mashed sweet potatoes mixed with brown sugar, butter, and vanilla, topped with crunchy pecans and gooey mini marshmallows. Baked to golden perfection, it’s a comforting and nostalgic treat perfect for family gatherings.

Ingredients

Scale

Sweet Potato Mixture

  • 2 ½ pounds sweet potatoes, peeled and cut into 1-inch cubes
  • ¼ cup light brown sugar, packed
  • ¼ cup unsalted butter, softened
  • 1 teaspoon salt
  • 1 teaspoon vanilla extract
  • ¼ cup pecans, chopped

Topping

  • 2 cups mini marshmallows
  • ¼ cup pecans, chopped

Instructions

  1. Preheat Oven and Prepare Dish: Preheat your oven to 375°F (190°C) and grease a 9 x 13-inch casserole dish to prevent sticking.
  2. Cook Sweet Potatoes: Place the peeled and cubed sweet potatoes into a large pot of boiling water. Reduce heat to low and simmer until the potatoes are tender, approximately 10-15 minutes.
  3. Drain and Mash: Drain the cooked sweet potatoes well and transfer them into a large mixing bowl. Mash the sweet potatoes thoroughly while adding in the brown sugar, softened butter, salt, and vanilla extract until smooth and evenly combined.
  4. Add Pecans and Assemble: Fold in ¼ cup of chopped pecans into the mashed sweet potato mixture. Spread this mixture evenly in the prepared casserole dish. Then, sprinkle the top with the mini marshmallows and the remaining ¼ cup chopped pecans.
  5. Bake the Casserole: Place the casserole in the preheated oven and bake for 20-25 minutes, or until the sweet potatoes are bubbly and the marshmallows are puffed and lightly golden brown on top.

Notes

  • For an extra crunchy topping, you can toast the pecans lightly before adding them.
  • If you prefer a less sweet casserole, reduce the amount of brown sugar slightly.
  • Make sure to drain the sweet potatoes well after boiling to avoid a watery casserole.
  • You can prepare this dish a day in advance; assemble and refrigerate, then bake before serving.
  • Leftovers can be stored covered in the refrigerator for up to 3 days and reheated in the oven.

Keywords: sweet potato casserole, holiday side dish, baked sweet potatoes, marshmallow topping, pecan topping, classic casserole