There's something undeniably nostalgic about an old-fashioned sweet potato casserole, especially when it's crowned with a golden marshmallow topping. This classic dish brings together the comforting sweetness of tender sweet potatoes and the irresistible fluff of melted marshmallows, creating a balance that has graced holiday tables for generations.

Whether you're continuing a family tradition or looking to add a timeless favorite to your own holiday spread, this recipe is sure to evoke warm memories and satisfy every sweet tooth.
✨ Here is why this recipe is amazing:
- easy to make
- classic dish that everyone loves
- uses simple ingredients
Ingredients needed:

- 5 sweet potatoes, peeled and diced
- ½ cup packed brown sugar
- ¼ cup butter
- 3 tablespoons orange juice
- A pinch of ground cinnamon
- 1 (10.5-ounce) package of miniature marshmallows
How to Make Old Fashioned Sweet Potato Casserole
Step One: Prepare Sweet Potatoes
Preheat your oven to 350°F (175°C). Lightly grease a 9x13-inch baking dish with cooking spray and set it aside.

- Place the diced sweet potatoes in a large stockpot and cover them with water.
- Bring the water to a boil and cook the potatoes until they are tender when pierced with a fork, about 10-15 minutes.
Step Two: Mash the Sweet Potatoes



- Drain the potatoes and mash them in a large bowl.Using a stand mixer or electric hand mixer, blend the mashed sweet potatoes with brown sugar, butter, orange juice, and a pinch of cinnamon until smooth and well-combined.

- Spread the sweet potato mixture evenly into the prepared baking dish.
Step Three: Top with Marshmallows and Bake


Generously sprinkle the top with the miniature marshmallows.Bake for 25-30 minutes, or until the marshmallows are golden brown and toasted.
❄️ Storage Tips
To store sweet potato casserole with marshmallow topping, follow these steps:
- Cool Completely: Allow the casserole to cool to room temperature before storing.
- Refrigerate: Cover the casserole tightly with plastic wrap or aluminum foil, or transfer it to an airtight container. Store it in the refrigerator for up to 3-5 days.
- Freezing: If you'd like to freeze the casserole, it's best to do so before adding the marshmallow topping. Wrap the casserole tightly with plastic wrap and then with aluminum foil, or place it in a freezer-safe container. It can be frozen for up to 2 months. When ready to serve, thaw in the refrigerator overnight, add the marshmallows, and bake as instructed.
♨️ Reheating Instructions
Reheating: To reheat, place the casserole in the oven at 350°F (175°C) for about 15-20 minutes, or until warmed through. If reheating from frozen, thaw it first in the refrigerator, add marshmallows, and then bake until hot and the marshmallows are toasted.

📝 Frequently asked questions
es, you can definitely make sweet potato casserole ahead of time! Here's how:
Prepare the Sweet Potato Mixture: Follow the recipe instructions to cook and mash the sweet potatoes, then mix them with the other ingredients (brown sugar, butter, orange juice, and cinnamon).
Store: Transfer the sweet potato mixture into your baking dish but do not add the marshmallows yet. Cover the dish tightly with plastic wrap or foil and refrigerate it for up to 2 days in advance.
When Ready to Bake: Remove the dish from the fridge about 30 minutes before baking to let it come to room temperature. Add the marshmallow topping just before baking and bake as directed.
Tips for the Best Sweet Potato Casserole
Here are three tips to make your sweet potato casserole even better:
Add Texture with a Pecan Topping: For an extra crunchy and delicious twist, sprinkle chopped pecans over the marshmallow topping. This adds texture and a nutty flavor that contrasts beautifully with the sweetness of the dish.
Roast the Sweet Potatoes: For an extra layer of flavor, try roasting the sweet potatoes instead of boiling them. Roasting caramelizes the natural sugars, enhancing the sweetness and giving the dish a deeper flavor. Simply peel, dice, and roast them at 400°F for about 25-30 minutes until tender before mashing.
Use Fresh Orange Juice: If possible, use freshly squeezed orange juice for a brighter, fresher citrus flavor. It adds a subtle zest that pairs perfectly with the sweet potatoes and complements the sweetness of the marshmallows.
More Side Dish Recipes

Old Fashioned Sweet Potato Casserole
Ingredients
- 5 sweet potatoes peeled and diced
- ½ cup packed brown sugar
- ¼ cup butter
- 3 tablespoons orange juice
- pinch of ground cinnamon
- 10.5 ounces miniature marshmallows
Instructions
- Preheat your oven to 350°F (175°C).
- Lightly grease a 9x13-inch baking dish with cooking spray and set it aside.
- Place the diced sweet potatoes in a large stockpot and cover them with water. Bring the water to a boil and cook the potatoes until they are tender when pierced with a fork, about 10-15 minutes. Drain the potatoes and mash them in a large bowl.
- Using a stand mixer or electric hand mixer, blend the mashed sweet potatoes with brown sugar, butter, orange juice, and a pinch of cinnamon until smooth and well-combined.
- Spread the sweet potato mixture evenly into the prepared baking dish. Generously sprinkle the top with the miniature marshmallows.
- Bake for 25-30 minutes, or until the marshmallows are golden brown and toasted.
Nutrition
Nutritional facts are estimates and are provided as a courtesy to the reader. Please utilize your own brand nutritional values to double check against our estimates. Nutritional values are calculated via a third party. Changing ingredients, amounts or cooking technique will alter the estimated nutritional calculations.
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this recipe was created by:
Fun Recipe Ideas Kitchen
We're a team of passionate food lovers dedicated to making cooking easy, fun, and stress-free.
Whether you need quick weeknight dinners, comforting classics, festive holiday favorites, or indulgent desserts, we've got you covered!







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