Sweet Potato Casserole with Marshmallow Fluff

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We love this sweet potato casserole! It’s topped with homemade toasted marshmallow fluff and the sweet potatoes are baked rather than boiled making it an easy sweet potato casserole recipe! This holiday classic has been a family favorite for many years!

Sweet potato casserole with marshmallow fluff.


This dish is a staple at our Thanksgiving table! What I love about this recipe is that the sweet potatoes are baked rather than boiled. This eliminates having to peel, chop and boil them.

Furthermore, when sweet potatoes are baked they become even sweeter! It also makes mashing so much easier. It’s just easier all around and the flavor is perfect. Creamy sweet potatoes are a classic thanksgiving side dish.

We’ve always topped ours with marshmallows growing up, but I love nothing more than spreading a fluffy, homemade marshmallow fluff over the top! Torch it with a kitchen torch and it not only looks gorgeous but tastes even better!

You can also use marshmallows too, mini marshmallows or large work great. Simply add an even layer of marshmallows over the top of the sweet potatoes (once the casserole is done) and place in the oven for 5-10 minutes until the marshmallows are gooey and toasted! 

Overhead of sweet potato casserole with marshmallow fluff and a napkin that reads Thankful.

How to Make Sweet Potatoe Casserole 

This casserole is made with only 5 ingredients! Here is everything you need to make this recipe. The full recipe is in the recipe card below.

Supplies

You’ll need a few supplies to make this classic side dish:

  • Baking Dish or Casserole Dish
  • Baking Sheet
  • Potato Masher or Hand Mixer
  • Tin Foil
  • Large Bowl
Toasted marshmallow on a sweet potato casserole recipe

Ingredients 

Sweet Potatoes – You’ll need 5 large sweet potatoes for this recipe. We use whole sweet potatoes and pop them right in the oven!

Brown Sugar – This adds all of the sweetness to the sweet potatoes. You can use dark brown sugar or light brown sugar.

Butter – This adds so much flavor to the sweet potato mixture! Use good quality butter for the best flavor.

Heavy Cream – The cream gives the casserole a creamy texture.

Vanilla Extract – Add flavor and gives more depth to the dish. Use pure vanilla extract.

Salt – Enhances the flavors in the recipe.

Fluffy Marshmallows or Marshmallow Fluff – Either of these will work to add a delicious marshmallow topping over the sweet potatoes!

Five sweet potatoes lines up in a row on a marble table.

Directions

How to Bake a Sweet Potato 

Preheat the oven to 425 degrees Fahrenheit

Rinse and pat dry the potatoes.

Line a baking sheet with foil and place the potatoes on the aluminum foil to bake.

Bake until tender for about 50 minutes. You want them to be extra soft. 

Cut them open and scoop out the sweet potato and place them in a bowl, leaving the skin behind. 

Mash the sweet potatoes with butter, sugar, salt, and heavy cream while they’re hot. 

Bake until tender for about 50 minutes. You want them to be extra soft.

Cut them open and scoop out the sweet potato and place them in a bowl, leaving the skin behind.

Scooping out the inside of a sweet potato to make a sweet potato casserole.

How to Mash Potatoes

If you don’t have a potato masher, use a fork to get them as smooth as possible. If you want them really smooth add them to a food processor.

We don’t like them too smooth though as the texture is nice for a casserole.

Boiled Potatoes vs. Baked Potatoes

There are two ways of getting soft sweet potatoes. You can peel, chop, and then bring them to a boil in a large pot. Then they’re drained and mashed. However, we find the easiest way is to bake them.

You don’t have to peel or chop and when baked they are even sweeter!

For this method, you simply poke holes in the potatoes, then place them on a baking sheet lined with tin foil and bake until super soft. Then slice opens the top and scoops out the inside of the sweet potato.

Sweet potato casserole in a baking dish.

Add More Flavors to the Sweet Potatoe Casserole

Bourbon – You can even add in a splash of bourbon or any liquor to give the sweet potatoes an extra kick! Spices like cinnamon and nutmeg are also great in a sweet potato casserole. 

Nuts – Top the casserole with walnuts or pecans for a crunch or add a streusel topping over the top of the casserole.

Orange Juice and Orange Zest – Give the dish some citrus notes with orange juice. It will add so much yummy flavor to the dish! Just add a tablespoon of zest or juice to the recipe.

Cardamom – If you’re a fan of this fall spice, add a 1/2 teaspoon for an incredible flavor. We use it in our apple cider donuts and they are amazing!

Spread the homemade marshmallow fluff over the mashed sweet potatoes.

Kitchen torch making marshmallow topping toasty

Marshmallow Topping

There are two ways you can add toasty marshmallows to this dish!

Marshmallow Fluff – Spread the homemade marshmallow fluff over the mashed sweet potatoes.  Using a kitchen torch, torch the marshmallow fluff until it’s toasty! 

Marshmallows – Place large marshmallows or mini marshmallows over the top of the mashed sweet potatoes before baking. They will become gooey marshmallows and taste so good in this classic sweet potato casserole.

Toasted marshmallow fluff on sweet potato casserole.

Make this dish ahead of time!

We all know how hectic the kitchen gets on Thanksgiving and there is nothing better than a recipe that can be prepared in advance, checking another thing on the Thanksgiving menu! To do this, prepare the casserole and place it in the baking dish you’ll be baking them in. Hold the marshmallows, you will add these right before baking.

Wrap the casserole with plastic wrap and store it in the refrigerator for up to two days. When you’re ready to bake, remove the wrap and add the marshmallows. Bake as the recipe calls. You can also make the marshmallow fluff ahead of time too!

In this case, you’ll wait to add the fluff until after they’re baking then use a kitchen torch to make them nice and toasty!

How to Store

If you have any leftovers, they can be stored in an airtight container for two days. Reheat in the microwave or oven. If you want to keep them longer, sweet potato casserole can be frozen for up to two months. Let it thaw overnight in the refrigerator then reheat.

Sweet potato casserole with marshmallow fluff.

Frequently Asked Questions

Are yams and sweet potatoes the same?

Sweet potatoes and yams are different. Yams have tougher skin and are starchier. They’re not as sweet as sweet potatoes. You can technically use sweet potatoes or yams in this sweet potato casserole recipe, but sweet potatoes are our favorite!

Sweet potatoes are a type of starchy, sweet-tasting potato. They have an orange color inside and can be eaten cooked or raw and are often used in sweet or savory dishes.

Can sweet potato casserole be made the night before?

Yes, this is a great make-ahead recipe! Prepare the casserole and store it in the refrigerator overnight. Add the marshmallows right before you’re ready to bake.

Where did sweet potato casserole with marshmallows originate?

There are many sweet potato casserole recipes that date back to the 1800s. The dish became popular in the southern United States and many families have their own twist on the dish. It’s a Thanksgiving staple in many households!

Should I put eggs in my sweet potato casserole?

We do not put eggs in our sweet potato casserole recipe, but some recipes do call for it. We find that sweet potatoes are sweet and creamy enough on their own and you don’t need a binder to keep the recipe together.

How long can you keep sweet potato casserole in the fridge?

Sweet potato casserole will stay good in the refrigerator for three to five days. This is with a marshmallow topping too. After five days we always discard the sweet potatoes. 

More Thanksgiving Recipes You’ll Love!

Creamy Garlic Brussels Sprouts

How to Cook a Turkey – Step-by-Step Guide

Easy Cornbread Muffins

Cheesy Scalloped Potatoes

Thanksgiving Appetizer Platter

The Best Stuffing Recipe

Easy Cranberry Sauce

Sweet Potatoe Pie

This sweet potato casserole is the perfect holiday side dish! It’s easy to make, can be made ahead of time, and is always a huge hit! It’s sweet, creamy, fluffy, and has the perfect amount of crunch.

This dish is always a favorite and we know it will be one of yours too! Give this sweet potato casserole recipe a try and let us know what you think! Leave a comment and review below!

You can also FOLLOW US on FACEBOOK, INSTAGRAM, and PINTEREST to see more delicious recipes, cocktails, desserts, and parties!

Sweet Potato Casserole with Homemade Marshmallow Fluff

An easy recipe for sweet potato casserole with baked sweet potatoes and whipped marshmallow fluff!
4.34 from 12 votes
Print Pin Rate
Course: Side Dish
Cuisine: American
Prep Time: 10 minutes
Cook Time: 1 hour
10 minutes
Total Time: 1 hour 20 minutes
Servings: 8 people
Calories: 328kcal
Author: Eden

Ingredients

Sweet Potato Casserole

  • 5 large sweet potatoes , washed and pat dry
  • 1/2 cup brown sugar
  • 1/4 cup unsalted butter
  • 1/2 tsp salt
  • 2 tbsp heavy cream
  • 1 tsp vanilla extract
  • 10 large marshmallows

Instructions

  • Preheat the oven to 425-degrees Fahrenheit
  • Rinse and pat dry the potatoes.
  • Line a baking sheet with foil and place the potatoes on the foil to bake.
  • Bake until tender for about 1 hour. You want them to be extra soft. 
  • Cut them open and scoop out the sweet potato and place in a bowl, leaving the skin behind. 
  • Mash the sweet potatoes with butter, sugar, salt, vanilla, and heavy cream while they’re hot. 
  • Mash until the texture is smooth or how you like it. You can also use an electric mixer or blender to get smooth potatoes.
  • Spread the mashed sweet potatoes into a casserole dish.
  • Top with large marshmallows or spread the homemade marshmallow fluff over the mashed sweet potatoes. 
  • If you're using marshmallows, bake the dish in a 350-degree oven for 5 mins or until the marshmallows are golden brown.
  • Using a kitchen torch, torch the marshmallow fluff until it’s toasty! 

Notes

You can also use marshmallows for this recipe. Simply add an even layer of marshmallows over the top of the sweet potatoes (once the casserole is done) and place in a 350-degree oven for 5 minutes until the marshmallows are gooey and toasted!
This would replace the marshmallow fluff but is still be just as delicious! 

Nutrition

Calories: 328kcal | Carbohydrates: 64g | Protein: 4g | Fat: 7g | Saturated Fat: 5g | Polyunsaturated Fat: 0.3g | Monounsaturated Fat: 2g | Trans Fat: 0.2g | Cholesterol: 19mg | Sodium: 275mg | Potassium: 741mg | Fiber: 6g | Sugar: 27g | Vitamin A: 30380IU | Vitamin C: 5mg | Calcium: 80mg | Iron: 1mg
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sweet potato casserole picture with title.

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6 thoughts on “Sweet Potato Casserole with Marshmallow Fluff”

  1. 5 stars
    This recipe is really amazing! Perfect for any occasion! Thanks a bunch for this very tasty sweet potato casserole recipe! Will surely have this again! Highly recommended!

    Reply
  2. 5 stars
    Oh. My. Gosh! This is gorgeous! The result looks so powerful. I’m a fan of the marshmallow topping but I’ve never even thought of the combination of sweet potatoes with marshmallows. I believe the taste of this sweet potato casserole is just phenomenal. I’m so inspired. Thank you SO MUCH for sharing this brilliant idea and all of your useful recommendations. Such treasure. This made my day. I’m so lucky to have discovered your wonderful blog. Gonna browse it to explore more amazing recipes.

    Best wishes,
    Ann

    Reply

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