Sweet Potato Casserole with Marshmallows Recipe

Traditional mashed sweet potatoes mixed with warm cinnamon, real butter, brown sugar, and an egg binder for a smooth, velvety finish. Perfect for holiday menus, this easy recipe is topped with a single layer of toasted mini marshmallows.

Course Sides

Cuisine American

Keyword Easy Sweet Potato Casserole, Southern Sweet Potato Casserole, Southern Sweet Potato Casserole Marshmallows, Sweet Potato Casserole, Sweet Potato Casserole with Marshmallows, Sweet Potatoes, Thanksgiving Side Dish

Prep Time 10

Cook Time 30

Total Time 40

Servings

Calories 215kcal

Author Michele @ Flavor Mosaic

Ingredients

2-1/2 pounds sweet potatoes cooked, peeled and mashed
1/4 cup butter melted
1/4 cup white sugar
1/4 cup brown sugar
2 eggs beaten
1/2 cup milk
1/2 teaspoon cinnamon
2 cups mini marshmallows

US Customary - Metric

Instructions

Preheat oven to 350°F (175°C). Spray a 9x13 baking dish with nonstick cooking spray.
In a large bowl mix together the sweet potatoes, butter, white and brown sugars, eggs, milk, and cinnamon.
2-1/2 pounds sweet potatoes, 1/4 cup butter, 1/4 cup white sugar, 1/4 cup brown sugar, 2 eggs, 1/2 cup milk, 1/2 teaspoon cinnamon
Pour the sweet potato filling into a 9x13 baking dish and, using a spatula, spread the mixture evenly throughout the pan so it cooks evenly.
Sprinkle the mini marshmallows evenly over the top in a single layer. (Don't overload the marshmallows.)
2 cups mini marshmallows
Bake at 350 degrees F. for about 30 minutes or just until the marshmallows are golden brown. Do NOT overbake.

Video

Notes

Instant Pot Prep: To learn how to easily pressure-cook your fresh sweet potatoes without heating up the oven, check out my standalone Instant Pot Sweet Potatoes guide.
Optional Pecan Streusel Variation: If you have family members who prefer a crunchy topping over marshmallows, check out my Sweet Potato Casserole with Pecan Topping. Alternatively, you can mix 1/4 cup softened butter with 1/2 cup each of brown sugar, flour, and chopped pecans to cover half the casserole before baking.
Holiday Menu Inspiration: Round out a classic, balanced holiday feast by serving this sweet side dish alongside savory classics like roasted turkey, gravy, Green Bean Casserole, and traditional Cornbread Stuffing.
Runny Filling Fix: If your fresh boiled potatoes or canned alternatives hold too much moisture after mashing, stir 1 tablespoon of flour or cornstarch into the base mixture before baking to lock in a stable texture.

Nutrition