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Marshmallow-Topped Sweet Potatoes

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  • Prep 5 min
  • Total 35 min
  • Ingredients 5
  • Servings 8
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Cooking sweet potatoes is a staple of many Thanksgiving Day celebrations. Add our sweet potato and marshmallow side dish to your lineup, and wow your family with this quick-prep dish. In just five minutes, you can prep our baked sweet potato recipe, then throw it in the oven, and bake to perfection. Show your kids how to make this sweet potato-marshmallow dish, and start a family tradition that's sure to last for years to come.
Updated Sep 29, 2023
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How to Make Sweet Potatoes

Sweet potatoes are delicious when roasted, boiled, mashed and even slow-cooked—there are so many ways to make them! Even though sweet potatoes are often associated with Thanksgiving dinner, these colorful root vegetables are year-round favorites due to their mouthwateringly-sweet taste and their versatility in both flavor and preparation.

Wondering how to make sweet potatoes if you’re short on time? Try microwaving them! Just pierce your sweet potatoes with a fork and cook them in the microwave for 8 to 12 minutes, turning them over once halfway through the cooking time. Let them sit for one minute and then add your seasonings! Try serving your sweet potatoes with butter or margarine, brown sugar, maple syrup or honey and any of your favorite spices. We’re big fans of using cinnamon, allspice and nutmeg in sweet potato recipes!

How to Store Marshmallow Sweet Potato Casserole

If you end up with any extra spuds, don’t worry—there’s no need to discard your leftover sweet potatoes with marshmallows! Cooked sweet potatoes can be kept in the refrigerator in an airtight container up to 4 days. Leftover sweet potato casserole can be stored in the freezer in an airtight container for up to 2 months. Marshmallows do not freeze well, so we suggest removing them prior to freezing and adding additional marshmallows at the end of reheating time, if desired.


  • 3 cans (15-oz each) sweet potatoes, drained
  • 1/4 cup butter, melted
  • 1/4 cup firmly packed brown sugar
  • 1/2 teaspoon salt
  • 15 large marshmallows


  • 1
    Heat oven to 350°F. Spray 12x8-inch (2-quart) glass baking dish with nonstick cooking spray.
  • 2
    Place sweet potatoes in sprayed baking dish. Pour butter over potatoes. Sprinkle with brown sugar and salt. Top with marshmallows.
  • 3
    Bake at 350°F. for 25 to 30 minutes or until potatoes are thoroughly heated and marshmallows are lightly browned.

Tips from the Pillsbury Kitchens

  • tip 1
    Canned sweet potatoes, marshmallows, and a few pantry items make this an easy side dish to throw together.
  • tip 2
    No large marshmallows? Use 1 1/2 cups mini marshmallows so there’s no question everyone will get their fair share of the golden, gooey topping. Sprinkle mini marshmallows to cover potatoes and bake. Keep an eye on them so they don’t start to brown too quickly.
  • tip 3
    If the marshmallows start browning too quickly, loosely cover the baking dish with foil for last 10 minutes of baking time. The shiny nature of foil deflects the heat, slowing down the overall browning of ingredients that are high in sugar or fat.

Frequently Asked Questions

Why Put Marshmallows on Sweet Potatoes?

Sweet potatoes and marshmallows are a match made in heaven—and we think you’ll agree! The classic, comforting flavor combination is well-known and loved for its sweet and slightly-savory taste, making this traditional marshmallow sweet potato side dish the perfect addition to a well-rounded Thanksgiving feast. Try it out and see for yourself!

What Are the Best Sweet Potatoes for Sweet Potato Casserole?

This marshmallow sweet potatoes recipe uses canned sweet potatoes as a helpful shortcut for busy cooks—but if you have more time on your hands, you can start with whole sweet potatoes! There are actually hundreds of varieties of sweet potatoes, ranging in color from white to deep orange or even purple. Beauregard and Jewel sweet potatoes are usually easy to find—and both are popular choices for sweet potato casserole. Covington sweet potatoes have a super sweet flesh that is best suited for side dishes and desserts. O’Henry sweet potatoes are slightly less sweet and taste best in soups and stews.

In the United States, you’ll find that sweet potatoes and yams can be hard to differentiate. At many grocery stores, “yams” are not actual yams—they’re just softer varieties of sweet potatoes, which will work well in your sweet potato casserole! You don’t want to use actual yams, which have rounded ends and thick, scaly skin. Check your grocery store to find out how its sweet potatoes and yams are labeled.

Nutrition Information

240 Calories, 6g Total Fat, 1g Protein, 44g Total Carbohydrate, 20g Sugars

Nutrition Facts

Serving Size: 1 Serving
Calories from Fat
Total Fat
Saturated Fat
3 1/2g
Trans Fat
Total Carbohydrate
Dietary Fiber
% Daily Value*:
Vitamin A
Vitamin C
0 Starch; 0 Fruit; 3 Other Carbohydrate; 0 Skim Milk; 0 Low-Fat Milk; 0 Milk; 1/2 Vegetable; 0 Very Lean Meat; 0 Lean Meat; 0 High-Fat Meat; 1 Fat;
Carbohydrate Choice
*Percent Daily Values are based on a 2,000 calorie diet.

More About This Recipe

  • Of all the sweet potato recipes out there, this one is the dish that probably comes to mind when you hear the word “sweet potato casserole.” Candied with brown sugar and topped with fluffy marshmallows, it deserves a starring role in your Thanksgiving dinner. Want to learn even more about how to make the perfect sweet potato casserole? Right this way.
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