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–+ servings
A fully baked sweet potato casserole with a layer of melted and toasted miniature marshmallows on top is ready to be served and enjoyed.

Old Fashioned Sweet Potato Casserole

Print Recipe
Old-Fashioned Sweet Potato Casserole has creamy mashed sweet potatoes with brown sugar & cinnamon, baked under a gooey marshmallow top.
Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour
Course Side Dish
Cuisine American
Servings 12 Servings
Author Jan Nunes
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Ingredients

  • Non-Stick Cooking Spray or 1 Tablespoon Soft Butter
  • 5 Pounds Sweet Potatoes 2-40 Ounce Large Cans, Drained Well
  • 2 Large Eggs
  • ⅓ Cup Dark Brown Sugar
  • ½ Teaspoon Salt
  • 1 Teaspoon Ground Cinnamon
  • ½ Cup Whole Milk
  • 4 Tablespoons Butter Melted and Cooled
  • 10 oz Miniature Marshmallows

Instructions

  • Preheat and Prepare. Preheat oven to 350°F and lightly spray a 2-quart casserole dish with non-stick cooking spray or lightly grease with butter.
    Non-Stick Cooking Spray
  • Mash Sweet Potatoes. In a large mixing bowl, mash the sweet potatoes with a potato masher until they are completely mashed.
    5 Pounds Sweet Potatoes
  • Mix. In a medium bowl beat the eggs with a whisk until the yolks and the whites are well combined. Whisk in the brown sugar, salt, and cinnamon, followed by the milk and melted butter, and mix well.
    2 Large Eggs, ⅓ Cup Dark Brown Sugar, ½ Teaspoon Salt, 1 Teaspoon Ground Cinnamon, ½ Cup Whole Milk, 4 Tablespoons Butter
  • Combine. Pour the egg mixture into the mashed sweet potatoes. Beat with a whisk until all is well combined.
  • Pour into Pan and Bake. Spoon the sweet potato mixture into the prepared baking dish, smooth the top, and bake for 25 to 30 minutes.
  • Add Marshmallows. Remove from the oven and cover the top with the miniature marshmallows. Continue to bake for 10 to 15 minutes or until the marshmallows are golden brown.
    If the marshmallows are melting but not toasting, pop the casserole under the broiler for a few seconds to toast them. Watch carefully, they will brown quickly. Serve and Enjoy!
    10 oz Miniature Marshmallows

Notes

My Top Tips
♡ If the marshmallows do not toast after melting slightly in the oven, you can toast them under the broiler. This only takes a few seconds, so watch the casserole carefully.
Make-Ahead & Storage
Make-Ahead: You can make this sweet potato casserole in advance, early in the day, refrigerate it, and then bake it for dinner. Let the casserole sit at room temperature for ½ hour before baking.
Storage: Leftovers can be stored in an airtight container or tightly covered in plastic wrap in the refrigerator for up to 3 days.

Nutrition

Calories: 311kcal | Carbohydrates: 64g | Protein: 5g | Fat: 5g | Saturated Fat: 3g | Polyunsaturated Fat: 0.3g | Monounsaturated Fat: 1g | Trans Fat: 0.2g | Cholesterol: 39mg | Sodium: 266mg | Potassium: 673mg | Fiber: 6g | Sugar: 28g | Vitamin A: 26986IU | Vitamin C: 5mg | Calcium: 82mg | Iron: 1mg
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