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Sweet Potato Casserole

How to prepare a traditional sweet potato casserole.
Prep Time20 minutes
Cook Time45 minutes
Total Time1 hour 5 minutes
Course: Side Dish
Cuisine: American
Keyword: sweet potato casserole, Thanksgiving
Servings: 10 servings

Equipment

  • Large Mixing Bowl
  • small mixing bowl
  • 9×13-inch baking dish greased

Ingredients

Sweet Potato Base

  • 3 cups mashed sweet potatoes about 3-4 large sweet potatoes
  • ½ cup granulated sugar
  • 2 large eggs beaten
  • ½ cup whole milk or evaporated milk for richer flavor
  • ½ cup unsalted butter melted
  • 1 teaspoon vanilla extract
  • ½ teaspoon salt
  • ½ teaspoon cinnamon optional but traditional

Pecan Strusel Topping (Traditional)

  • ½ cup brown sugar packed
  • cup all-purpose flour
  • cup unsalted butter softened
  • 1 cup chopped pecans

Alternative Marshmellow Toppings

  • cups mini marshmallows use instead of or in addition to the streusel

Instructions

Prepare the Sweet Potatoes

  • Peel and cut sweet potatoes into chunks.
  • Boil in salted water until very tender (15–20 minutes).
  • Drain well and mash until smooth (measure 3 cups).

Make the Filling

  • In a large mixing bowl, combine: mashed sweet potatoes, sugar, eggs, milk, melted butter, vanilla, salt, cinnamon
  • Stir until the mixture is smooth, creamy, and well blended.
  • Transfer to a greased 9×13-inch baking dish.

Make the Pecan Topping (traditional)

  • In a small bowl, mix: brown sugar, flour, butter, pecans
  • Use a fork to combine until crumbly.
  • Sprinkle evenly over the sweet potato mixture.

Bake

  • Bake at 350°F (175°C) for 30–35 minutes, until the topping is golden and the edges are bubbling.

For a Marshmallow Top Instead

  • Bake the casserole for 25 minutes without the pecans.
  • Remove from oven, sprinkle a full layer of mini marshmallows on top.
  • Return to the oven for 8–10 minutes, or until marshmallows are golden.

Notes

Tips for Best Flavor
Roasted sweet potatoes have a deeper flavor than boiled — roast at 400°F for 45–60 minutes for an upgrade.
Add ½ teaspoon nutmeg or ½ teaspoon allspice for a more traditional holiday flavor.
If the filling seems too loose, add 2–3 tablespoons of flour or reduce the milk slightly.