Sweet Potato Casserole with Marshmallows

Introduction to Sweet Potato Casserole with Marshmallows

Sweet potato casserole with marshmallows is holiday comfort food: creamy, rich sweet potatoes under a sweet, fluffy marshmallow topping. It sits happily next to savory mains, and for many people it tastes like family dinners from years back.

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It is also simple. A handful of ingredients, mainly mashed sweet potatoes, brown sugar and mini marshmallows, come together quickly, so you can make it after work on a weeknight and have the kitchen smelling warm and sweet by dinnertime.

Make it for a holiday feast or just because you want a comforting side.

Key ingredients for Sweet Potato Casserole with Marshmallows

Mashed sweet potatoes (4 cups)

The mashed sweet potatoes are the creamy base. Their natural sweetness and smooth texture carry the rest of the ingredients.

Brown sugar (1/2 cup)

Brown sugar adds a deep, caramel-like sweetness that brings out the flavor of the sweet potatoes and makes the dish richer.

Melted butter (1/4 cup)

Butter adds richness, helps bind the mixture, and its slightly savory flavor rounds out the sweetness.

Milk (1/2 cup)

Milk adds creaminess and moisture, so the casserole stays soft and fluffy and the mixture comes together smoothly.

Vanilla extract (1 teaspoon)

Vanilla gives the casserole a warm, aromatic note and a little more depth.

Salt (1/2 teaspoon)

Salt balances the sweetness and brings out the taste of the sweet potatoes.

Mini marshmallows (2 cups)

The mini marshmallows melt and caramelize in the oven into a fluffy, gooey topping over the creamy base.

Why you’ll love this recipe

This is a classic for good reason, and it is easy enough for anyone who likes home cooking but not fuss. Creamy sweet potatoes underneath, gooey marshmallows on top.

It goes with a range of mains, from roasted turkey to glazed ham, so it fits a holiday feast or a casual family dinner. You can also prepare it ahead, which means less time in the kitchen when people are over.

Many families make it every year, and once you have made it, you will probably want it on your table for most occasions.

Variations of Sweet Potato Casserole with Marshmallows

The recipe is easy to adjust for different tastes and diets.

Nutty topping

Mix chopped pecans or walnuts with the mini marshmallows before baking. The nuts add crunch against the soft sweet potatoes, plus a bit more nutrition.

Spice it up

Cinnamon, nutmeg or even a dash of cayenne pepper adds warmth. A teaspoon of cinnamon in the sweet potato mixture brings out their earthy sweetness and makes the kitchen smell like fall.

Vegan twist

Replace the butter with coconut oil or a plant-based butter, and the milk with almond or oat milk, so guests who avoid dairy can have some too.

Tropical flavor

Stir crushed pineapple or shredded coconut into the sweet potato base. It adds a different kind of sweetness that plays well against the marshmallows, and your guests won’t expect it.

Cooking tips and notes for Sweet Potato Casserole with Marshmallows

Make-ahead tips

Prepare the sweet potato mixture and keep it in the refrigerator for up to two days. Add the marshmallow topping right before baking so it stays fluffy.

Browning the marshmallows

Watch the casserole during the last few minutes of baking so the marshmallows turn golden brown. For a crunchier top, broil it for an additional 1-2 minutes after baking, and stay close so it doesn’t burn.

Flavor boosters

A sprinkle of cinnamon or nutmeg in the sweet potato mixture adds flavor. A splash of orange juice brightens it.

Serving suggestions for Sweet Potato Casserole with Marshmallows

Its sweetness and creamy texture make it a natural side for savory proteins, especially at holiday meals.

Pairing with proteins

Serve it with roasted turkey, glazed ham or a simple herb-crusted chicken. The sweet potatoes balance the savory meat.

Adding freshness

A green salad with a tangy vinaigrette, or some steamed vegetables, gives you something crisp and fresh next to the creamy casserole.

Potlucks

It is a reliable potluck dish, and the golden marshmallow top gets attention on a crowded table. Bring a copy of the recipe, because someone will ask.

Time breakdown for Sweet Potato Casserole with Marshmallows

Preparation

About 20 minutes to gather the ingredients, mash the sweet potatoes and mix everything together.

Cooking/baking

Approximately 30 minutes in the oven at 350°F (175°C), until the flavors meld and the marshmallows are golden brown.

Total

Around 50 minutes from start to finish, which works for a busy weeknight as well as a holiday.

Nutritional facts for Sweet Potato Casserole with Marshmallows

A serving of about 1 cup has approximately 250 calories.

Each serving has 9 grams of total fat, including 5 grams of saturated fat, and 40 grams of carbohydrates, with 20 grams of sugars and 4 grams of dietary fiber. There are 3 grams of protein, 200 mg of sodium and 15 mg of cholesterol.

Frequently asked questions

Can I make Sweet Potato Casserole with Marshmallows ahead of time?

Yes. Mix the sweet potato base and keep it in the refrigerator, then add the marshmallows right before baking so they stay fluffy.

How long does it take to bake Sweet Potato Casserole with Marshmallows?

Usually about 25-30 minutes at 350°F (175°C). For an extra crunchy top, broil it for an additional 1-2 minutes at the end.

What can I serve with Sweet Potato Casserole?

Roasted turkey, glazed ham or herb-crusted chicken, with a fresh salad or steamed vegetables on the side.

Is Sweet Potato Casserole with Marshmallows vegetarian?

Yes, the recipe contains no meat.

Before you bake

Mix the base up to two days ahead, keep the marshmallows for the last minute, and watch the top closely at the end. The full recipe card is below.

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Written and edited by The Foodie Yummy Kitchen Team

The Foodie Yummy Kitchen Team writes and edits the recipes on Foodie Yummy: classic American potluck salads, holiday sides and easy comfort food, with a few low-carb options. Every recipe lists exact quantities, numbered steps and a printable recipe card, plus notes on swaps, storage and make-ahead timing. Spot a problem with a recipe? Tell us through the contact page and we will correct it. About us