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4.53 from 202 votes

Sweet Potato Casserole with Marshmallows

This classic sweet potato casserole with marshmallows is a must make side dish for Thanksgiving and the holidays!
Prep Time30 minutes
Cook Time35 minutes
Total Time1 hour 5 minutes
Course: Thanksgiving Recipes
Cuisine: American
Keyword: sweet potato casserole with marshmallows and pecans
Servings: 12
Author: Joy Shull

Ingredients

For the 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

For the pecan topping

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

For the marshmallow layer

  • 10 oz mini marshmallows

Instructions

  • Peel and cut the sweet potatoes into large chunks and place in a large sauce pan. Cover with water and bring to a boil
  • Boil until the sweet potatoes are fork tender and easily pierced with a fork. They should fall apart easily
  • Drain the sweet potatoes and add them back to the sauce pan. Mash with a potato masher. Add the rest of the sweet potato filling ingredients: butter, brown sugar, salt, cinnamon, vanilla extract, and nutmeg and mix until well combined
  • In a separate bowl, make the pecan topping. Stir together the melted butter, brown sugar, all purpose flour, salt, and pecan pieces until combined
  • Grease a 9 by 13 baking dish with cooking spray
  • Add the sweet potato filling and spread out evenly
  • Spread the pecan topping evenly over the top of the sweet potatoes
  • Add the mini marshmallows over the top in an even layer
  • Bake the sweet potato casserole at 350 degrees for 25-35 minutes, or until bubbly and the marshmallows are golden brown on top. Watch closely towards the end to get the perfect golden brown without burning

Nutrition

Calories: 418kcal | Carbohydrates: 61g | Protein: 3g | Fat: 20g | Saturated Fat: 8g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 8g | Trans Fat: 0.5g | Cholesterol: 30mg | Sodium: 263mg | Potassium: 340mg | Fiber: 3g | Sugar: 41g | Vitamin A: 11047IU | Vitamin C: 2mg | Calcium: 56mg | Iron: 1mg