This Sweet Potato Casserole with Marshmallows is a must-have side dish for your Thanksgiving table. It’s so easy and delicious!

Looking for more Thanksgiving favorites? I’ve got you covered:

Sweet Potato Casserole Ingredients

Here’s everything you’ll need for this easy Thanksgiving side dish:

Sweet potatoes: I’ll be baking my own sweet potatoes, but feel free to get the canned ones (like these) for an even easier recipe

Marshmallows: Mini are more traditional, but I used jumbo for fun here

Melted butter: For both the sweet potatoes and the topping

Milk: I use whole milk

Eggs: These help give the casserole a rich texture

Sugars: We’ll be using for brown sugar and granulated white sugar

Cold butter: For the topping

Flour: For the topping

Cinnamon: For warmth

Vanilla extract: For a subtle touch of vanilla

Salt: To bring it all together

How to Make Sweet Potato Casserole

Here’s how to make this dish:

Step 1: Bake your sweet potatoes

If you’re using fresh sweet potatoes, poke them with a knife and bake them in a 350 degree F oven for about 1.5 hours, or until tender. Let cool and then peel and add to a clean bowl and mash them using a potato masher (or a fork works in a pinch!).

Note: If using canned sweet potatoes, just mash them right out of the can. Preheat the oven to 350 degrees F.

Step 2: Add the ingredients.

Add the sugars, salt, cinnamon, vanilla, eggs, milk, and butter to the mashed sweet potatoes. Stir to combine and then add them to a baking dish, like this:

Step 3: Make the topping

Make the topping by combining the brown sugar, flour, and cold butter. (Option to add chopped pecans or walnuts if you wish.) Mix until it’s crumbly, like above, then add it to the sweet potatoes, like this:

Step 4: Bake the casserole

Add the casserole to the preheated oven and bake for 30 minutes, then remove and add the marshmallows, like this:

If you have the option, turn the oven to broil and let cook for a few minutes (watch closely!) until the tops are lightly browned. If you don’t have a broiler, just pop them back in the oven for 5-8 minutes.

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5 from 1 vote

Sweet Potato Casserole with Marshmallows

This Sweet Potato Casserole with Marshmallows is a must-have side dish for your Thanksgiving table. It's so easy and delicious!

Prep Time1 40

Cook Time40

Course: Side Dish

Keyword: sweet potato casserole, thanksgiving

Servings: 8 people

Equipment

1 deep pie dish or equivalent

Ingredients

2.5 lbs sweet potatoes, baked until tender and peeled or sub equal amount of canned sweet potatoes/yams
2 eggs
¼ cup milk
¼ cup granulated sugar
¼ cup packed brown sugar
¼ cup unsalted butter melted
½ teaspoon kosher salt
½ teaspoon ground cinnamon
½ teaspoon vanilla extract

For the topping

¼ cup packed brown sugar
2 tbs flour
2 tbs unsalted butter cold and cut into cubes
1 cup marshmallows mini or jumbo
½ cup chopped pecans or walnuts optional

Instructions

Preheat the oven to 350 degrees F.
Mash the sweet potatoes until smooth, then add the butter, milk, eggs, sugars, salt, cinnamon, and vanilla. Mix to combine, then pour into your baking dish.
Make the topping by adding the cold butter, brown sugar, and flour together in a bowl. Mix with your fingers (or a fork) until it's crumbly. Add chopping pecans or walnuts now if using. Sprinkle all over the top of the sweet potatoes and bake for ~30 minutes.
Remove form the oven and top with the marshmallows. Bake for another 5-8 minutes, or until the tops are lightly browned. (You can also turn the broiler on low for this step, just make sure to watch it.) Enjoy!