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Sweet Potato Casserole with Marshmallows and Pecan Topping Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.2 from 21 reviews
  • Author: Chef
  • Prep Time: 15 minutes
  • Cook Time: 35 minutes
  • Total Time: 50 minutes
  • Yield: 8 servings
  • Category: Side Dish
  • Method: Baking
  • Cuisine: American

Description

This Sweet Potato Casserole with Marshmallows is a classic holiday side dish featuring creamy mashed sweet potatoes topped with a crunchy pecan topping and a layer of golden, toasted mini marshmallows. The combination of warm spices, buttery pecan crumble, and sweet marshmallows creates a comforting and festive dish perfect for family gatherings or holiday dinners.


Ingredients

Sweet Potato Filling

  • 4 large sweet potatoes, peeled and chopped into large chunks (around 9 cups worth)
  • ½ cup unsalted butter, melted
  • 1 cup brown sugar
  • ½ teaspoon salt
  • ½ teaspoon cinnamon
  • 1 teaspoon vanilla extract
  • ¼ teaspoon nutmeg

Pecan Topping

  • 4 tablespoons unsalted butter, melted
  • ⅓ cup brown sugar
  • 2 tablespoons all purpose flour
  • ½ teaspoon salt
  • 1 ¼ cups finely chopped pecan pieces

Marshmallow Layer

  • 10 oz mini marshmallows


Instructions

  1. Prepare Sweet Potatoes: Peel and cut the sweet potatoes into large chunks and place them into a large saucepan. Cover with water and bring to a boil.
  2. Boil Sweet Potatoes: Boil the sweet potatoes until fork tender and easily pierced with a fork, about 15-20 minutes. They should fall apart easily.
  3. Mash Sweet Potatoes and Mix: Drain the sweet potatoes and return them to the saucepan. Mash with a potato masher. Add melted butter, brown sugar, salt, cinnamon, vanilla extract, and nutmeg, mixing until well combined.
  4. Make Pecan Topping: In a separate bowl, stir together melted butter, brown sugar, all-purpose flour, salt, and finely chopped pecans until combined to form the topping mixture.
  5. Prepare Baking Dish: Grease a 9×13 inch baking dish with cooking spray to prevent sticking.
  6. Assemble Casserole: Spread the sweet potato filling evenly in the prepared baking dish. Sprinkle the pecan topping evenly over the sweet potatoes, then layer the mini marshmallows evenly on top.
  7. Bake: Bake the casserole at 350°F (175°C) for 25-35 minutes or until the casserole is bubbly and the marshmallows are golden brown. Watch closely near the end to achieve perfect golden topping without burning.

Notes

  • Leftover casserole can be stored in an airtight container in the refrigerator for 4-5 days.
  • To reheat, cover with foil and warm in the oven at 350°F until heated through.
  • For a nuttier flavor, toast the pecans lightly before mixing into the topping.
  • Use fresh marshmallows instead of mini marshmallows for a different texture if desired.