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Classic Southern Sweet Potato Casserole with Pecan Topping

A close-up slice of rich orange southern sweet potato casserole topped with a crunchy pecan streusel.

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Make this creamy, sweet Southern Sweet Potato Casserole featuring a crunchy pecan crumble topping. It is a traditional holiday side dish perfect for Thanksgiving.

Ingredients

Scale
  • 3 cups cooked and mashed sweet potatoes (about 3 pounds raw)
  • 1 cup granulated sugar
  • 1/2 cup (1 stick) unsalted butter, melted
  • 2 large eggs, lightly beaten
  • 1/2 cup milk
  • 1 teaspoon vanilla extract
  • 1/2 teaspoon ground cinnamon
  • 1/4 teaspoon ground nutmeg
  • Pinch of salt
  • 1 cup packed light brown sugar (for topping)
  • 1/3 cup all-purpose flour (for topping)
  • 1/2 cup (1 stick) cold unsalted butter, cut into small pieces (for topping)
  • 1 cup chopped pecans (for topping)

Instructions

  1. Preheat your oven to 350°F (175°C). Lightly grease a 9×13 inch baking dish.
  2. In a large bowl, combine the mashed sweet potatoes, granulated sugar, 1/2 cup melted butter, eggs, milk, vanilla extract, cinnamon, nutmeg, and salt. Mix until the sweet potato base is smooth and well combined.
  3. Pour the sweet potato mixture evenly into the prepared baking dish.
  4. Prepare the pecan topping: In a separate medium bowl, combine the brown sugar, flour, and chopped pecans. Cut in the cold butter using a pastry blender or your fingers until the mixture resembles coarse crumbs.
  5. Sprinkle the pecan topping evenly over the sweet potato mixture.
  6. Bake for 30 to 35 minutes, or until the topping is golden brown and the casserole is heated through.
  7. Let the casserole cool for 10 minutes before serving.

Notes

  • For a marshmallow topping variation, omit the pecan topping ingredients. Spread 2 cups of miniature marshmallows over the sweet potato base during the last 10 minutes of baking.
  • You can cook the sweet potatoes ahead of time by boiling or baking them. Measure 3 cups once mashed.
  • This casserole can be assembled a day ahead. Cover and refrigerate, then add 10-15 minutes to the baking time if baking directly from the refrigerator.

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