Grandma’s Marshmallow Sweet Potato Bake Tips, FAQ & printable recipe

Tips for success

For a more balanced flavor profile, consider adding a pinch of salt to the butter and sugar mixture, which helps to cut through the sweetness of the marshmallows. If you find the marshmallows are browning too quickly before the sweet potatoes are hot, you can tent the dish loosely with aluminum foil for the first half of the baking time.

The choice of sweet potato variety can impact the final texture. Jewel or Garnet sweet potatoes are excellent choices as they provide a vibrant color and a naturally creamy texture when cooked.

If you prefer a more fibrous potato, adjust your baking time slightly to ensure they reach the desired level of tenderness before the final assembly step.

Variations

• Nutty Crunch: Add 1/2 cup of chopped pecans or walnuts to the marshmallow topping before baking. This provides a delightful crunch that contrasts perfectly with the soft, caramelized sweet potatoes and gooey marshmallows.
• Spiced Ginger: Incorporate 1/2 teaspoon of ground ginger and a pinch of nutmeg into the butter mixture. This adds a warm, spicy undertone that enhances the natural sweetness of the potatoes.

Storage and make-ahead

Fridge

Store in an airtight container in the refrigerator for up to 3 days.

Freezer

Freezing is not recommended as the marshmallow topping will lose its texture.

Reheat

Reheat in a 300°F (150°C) oven until warmed through, or microwave individual portions for 30-60 seconds.

Allow any leftovers to cool completely at room temperature, but do not leave them out for more than two hours. Once cooled, transfer the leftovers into an airtight container to maintain moisture.

The dish can be stored in the refrigerator for up to three days. Note that the marshmallow topping may lose some of its crisp, toasted texture upon storage, but the flavor will remain excellent.

You can prepare the sweet potatoes and the butter glaze up to twenty-four hours in advance. Keep the cooked sweet potatoes and the sugar-butter mixture in separate airtight containers in the refrigerator.

Assemble the dish just before baking to ensure the best texture, as adding the marshmallows too early can cause them to dissolve into the sugar mixture.

Serving ideas

Serve this dish warm, ideally within ten minutes of removing it from the oven, to ensure the marshmallows maintain their soft, gooey pull. Use a large serving spoon to scoop through both the toasted marshmallow layer and the tender sweet potatoes, ensuring each portion includes a generous amount of the spiced syrup from the bottom of the dish.

This bake pairs exceptionally well with roasted meats or as a standalone dessert component for a festive meal. The contrast between the warm, spiced potatoes and the sweet, airy marshmallows makes it a memorable addition to any table.

Offer guests a variety of side options to complement the richness of the sweet potatoes and ensure a balanced dining experience.

Frequently asked questions

Recipe card

Grandma's Marshmallow Sweet Potato Bake

Prep 15 minCook 30 minRest 5 minTotal 50 minServes 8

Ingredients

• 4 lbs sweet potatoes, cooked, peeled, and cut into chunks
• 1/2 cup unsalted butter, melted
• 1/2 cup brown sugar, packed
• 1 tsp ground cinnamon
• 2 cups mini marshmallows

Instructions

1. Place the cooked, peeled, and cubed sweet potatoes into a large rectangular ceramic baking dish. Arrange the chunks evenly so they fill the dish without being overly crowded, ensuring they will cook through and absorb the butter mixture effectively during the baking process.
2. In a glass measuring cup, combine the melted butter, brown sugar, and ground cinnamon. Whisk the mixture until the sugar is fully incorporated into the butter. Pour this mixture evenly over the sweet potatoes in the baking dish, making sure to coat the pieces thoroughly for maximum flavor.
3. Scatter the mini marshmallows evenly over the top of the sweet potatoes. Place the dish into a preheated oven at 350°F (175°C) and bake for approximately 25 to 30 minutes. Remove when the marshmallows are puffed and toasted golden brown, and the syrupy liquid is bubbling at the edges of the baking dish.

Contains: milk

Estimated nutrition per serving

Calories

320

Protein

2.5 g

Carbohydrates

62 g

Fat

8 g

Fiber

4.5 g

Sugar

35 g

Sodium

85 mg

Automatic estimate from the ingredient list, not laboratory-verified.