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A baking dish filled with sweet potato casserole topped with toasted marshmallows. A serving spoon is placed in the dish, and a portion has been served onto a nearby plate.
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Sweet Potato Casserole With Marshmallows And Pecans

This rich and creamy sweet potato casserole with marshmallows and pecans is the ultimate holiday side dish!
Course Side Dishes
Cuisine American
Keyword sweet potato casserole, sweet potato casserole with marshmallows and pecans
Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
Servings 10
Calories 403kcal

Equipment

Ingredients

For The Casserole

  • 3 pounds sweet potatoes peeled and chopped
  • 1/3 cup butter softened
  • 1/3 cup milk
  • 1/3 cup dark brown sugar
  • 1 teaspoon vanilla
  • 1 teaspoon cinnamon
  • 1/4 teaspoon nutmeg
  • 1/2 teaspoon salt
  • 1 egg

For The Streusel:

  • 2/3 cup brown sugar
  • 1/2 cup all purpose flour
  • 2/3 cup rolled oats
  • 1/3 cup chopped pecans
  • 1/2 teaspoon cinnamon
  • 1/3 cup butter melted
  • 1/2 cup marshmallows

Instructions

To Make the Casserole

  • Heat the oven to 375° and spray a 2 quart pan with cooking spray.
  • Add the cubed sweet potatoes to a deep pan and cover with water. Boil for 20 to 25 minutes until fork tender.
    3 pounds sweet potatoes
  • Remove the sweet potatoes and add them to a bowl. Use a hand mixer to beat the sweet potatoes, butter, milk, brown sugar, vanilla, cinnamon, nutmeg, and salt together in a large bowl.
    1/3 cup butter, 1/3 cup milk, 1/3 cup dark brown sugar, 1 teaspoon vanilla, 1 teaspoon cinnamon, 1/4 teaspoon nutmeg, 1/2 teaspoon salt
  • Add the egg and blend until smooth.
    1 egg
  • Spread the sweet potato mixture into the prepared casserole dish.

To Make The Topping

  • For the streusel topping, mix the brown sugar, flour, oats, pecans, cinnamon, and melted butter together. Crumble over the sweet potatoes.
    2/3 cup brown sugar, 1/2 cup all purpose flour, 2/3 cup rolled oats, 1/3 cup chopped pecans, 1/2 teaspoon cinnamon, 1/3 cup butter
  • Place the pan in the oven and bake for 15 minutes. Remove and top with marshmallows.
    1/2 cup marshmallows
  • Place back in the oven for 5 minutes or until marshmallows are toasted.
  • Serve warm and enjoy.

Notes

Want to make this ahead of time? Prepare it the night before, but store the streusel and the marshmallows separately. Pop the casserole in the fridge, then the next day when you're ready, add the toppings and bake.

Nutrition

Serving: 1g | Calories: 403kcal | Carbohydrates: 62g | Protein: 5g | Fat: 16g | Saturated Fat: 8g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 5g | Trans Fat: 0.5g | Cholesterol: 50mg | Sodium: 307mg | Potassium: 553mg | Fiber: 5g | Sugar: 30g | Vitamin A: 19723IU | Vitamin C: 3mg | Calcium: 85mg | Iron: 2mg