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A bubbling sweet potato casserole with a golden, toasted marshmallow topping

Proven way to grow perfect Sweet Potato Casserole

This recipe guides you through creating a delicious sweet potato casserole with a delightful pecan topping, perfect for any occasion. It combines creamy sweet potatoes with a crunchy, sweet streusel for a balanced and satisfying dish.
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Prep Time 20 minutes
Cook Time 45 minutes
Total Time 1 hour 5 minutes
Servings: 8 people
Calories: 450
Ingredients Equipment Method Notes

Ingredients
  

Sweet Potato Base
  • 4 large sweet potatoes about 6 cups mashed
  • 1/2 cup unsalted butter 1 stick, melted
  • 1/2 cup granulated sugar
  • 1/4 cup light brown sugar
  • 2 large eggs
  • 1/4 cup milk
  • 1 teaspoon vanilla extract
  • 1/2 teaspoon salt
Pecan Streusel Topping
  • 1/2 cup all-purpose flour
  • 1/2 cup light brown sugar
  • 1 cup chopped pecans
  • 1/3 cup unsalted butter melted
Marshmallow Topping (Optional)
  • 2 cups mini marshmallows

Equipment

  • 9x13 inch baking dish
  • large pot
  • potato masher
  • large bowl
  • medium bowl

Method
 

Preparation
  1. Preheat your oven to 375°F (190°C) and grease a 9x13 inch baking dish.
  2. Peel the sweet potatoes, cut them into 1-inch cubes, and boil them in salted water until very tender.
Sweet Potato Base
  1. Drain the sweet potatoes well, then mash them in a large bowl until smooth.
  2. Add the melted butter, granulated sugar, light brown sugar, eggs, milk, vanilla extract, and salt to the mashed sweet potatoes, mixing until well combined and smooth.
  3. Pour the sweet potato mixture into the prepared baking dish and spread it evenly.
Pecan Streusel Topping
  1. In a medium bowl, combine the flour, light brown sugar, and chopped pecans, then pour in the melted butter and mix until crumbly.
  2. Evenly sprinkle the streusel mixture over the sweet potato base in the baking dish.
Baking
  1. Bake for 30 minutes, or until the streusel is golden brown and the casserole is heated through.
  2. If adding marshmallows, remove the casserole, top with marshmallows, and bake for an additional 10-15 minutes until golden brown.
Serving
  1. Allow the casserole to cool for a few minutes before serving warm.

Notes

For an extra golden-brown marshmallow topping, you can briefly broil the casserole for 1-2 minutes, watching carefully to prevent burning. This casserole can be assembled a day ahead; cover and refrigerate, then bring to room temperature before baking and add 10-15 minutes to the baking time.