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Sweet Potato Marshmallow Casserole Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.7 from 67 reviews
  • Author: Megane
  • Prep Time: 10 minutes
  • Cook Time: 55 minutes
  • Total Time: 1 hour 5 minutes
  • Yield: 6 servings
  • Category: Side Dish
  • Method: Baking
  • Cuisine: American

Description

A deliciously creamy and sweet sweet potato marshmallows casserole that combines tender baked sweet potatoes with a rich blend of sugar, butter, milk, and eggs, topped with golden toasted mini marshmallows for a perfect holiday side dish or comforting dessert.


Ingredients

Scale

Main Ingredients

  • 2 pounds fresh sweet potatoes
  • 6 tablespoons granulated sugar
  • 4 tablespoons (2 ounces) unsalted butter, melted
  • 1/4 cup milk
  • 2 large eggs
  • 1/2 teaspoon vanilla extract
  • 1/2 teaspoon salt
  • 3 cups mini marshmallows


Instructions

  1. Preheat and Bake Sweet Potatoes: Preheat the oven to 400°F (204°C) and line a sheet pan with foil. Place the sweet potatoes on the pan and prick them with a fork. Bake for 40-50 minutes, depending on size, until the skins start to collapse and a fork pierces them easily. Remove from the oven.
  2. Cool and Prepare Mixture: Lower the oven temperature to 350°F (177°C) and allow the sweet potatoes to cool for at least 20 minutes. In a bowl, whisk together sugar, melted butter, milk, vanilla extract, and salt until combined.
  3. Mash Sweet Potatoes and Mix: Peel the cooled sweet potatoes, add them to the bowl with the sugar mixture, and mash everything together thoroughly. Stir in the eggs until well incorporated.
  4. First Bake of Casserole: Spread the sweet potato mixture evenly into a small 20-ounce (0.6L) baking dish. Bake for 20 minutes at 350°F (177°C).
  5. Add Marshmallows and Toast: Remove the baking dish from the oven, scatter the mini marshmallows evenly over the top, and bake for another 5-10 minutes until the marshmallows are toasted and lightly golden brown. Serve immediately for best results.

Notes

  • You can prepare the casserole up to step 4 ahead of time. After cooling, cover tightly with plastic wrap and refrigerate for up to 2 days. Reheat in a 350°F oven for 30 minutes before adding marshmallows and toasting them for 5-10 minutes.
  • Adding and toasting marshmallows just before serving prevents dissolving and preserves texture and appearance.
  • For smaller servings (about 2), halve the ingredients accordingly and use a 0.6L baking dish with the same cooking times.

Nutrition

  • Serving Size: 1 serving (approx. 1/6 of casserole)
  • Calories: 290 kcal
  • Sugar: 18 g
  • Sodium: 170 mg
  • Fat: 10 g
  • Saturated Fat: 6 g
  • Unsaturated Fat: 4 g
  • Trans Fat: 0 g
  • Carbohydrates: 44 g
  • Fiber: 4 g
  • Protein: 4 g
  • Cholesterol: 55 mg