Introduction
As the leaves turn and the air cools, the comfort of a cozy casserole becomes irresistible. This scalloped sweet potato casserole brings a blend of sweetness and savory warmth, perfect for any fall gathering or holiday feast. With layers of tender sweet potatoes and a decadent brown sugar sauce, it's sure to become a new family favorite.
The beauty of this dish lies in its simplicity and the depth of flavor that develops during baking. Each ingredient plays a crucial role, creating a creamy texture that complements the natural sweetness of the sweet potatoes. Prepare to impress your guests and satisfy your cravings with this rich, flavorful casserole.
Ingredients
- 4 large sweet potatoes
The foundation of this dish, sweet potatoes provide a natural sweetness and creaminess when baked. They are also packed with vitamins A and C, making this casserole not only delicious but nutritious. - 1 medium onion
Sautéed onions add a savory depth to the casserole, balancing the sweetness of the potatoes. Their natural sugars caramelize beautifully when cooked, enhancing the overall flavor. - 2 cups heavy cream
Heavy cream is essential for creating a rich, smooth sauce that envelops the sweet potatoes. It adds creaminess and body, making each bite indulgent. - 1 cup brown sugar
Brown sugar contributes a deep, molasses-like sweetness that perfectly complements the sweet potatoes. It also helps create a slightly caramelized top layer when baking. - 1 teaspoon cinnamon
Cinnamon adds a fragrant warmth that enhances the sweet flavors. It evokes the essence of autumn and brings a cozy aroma to the kitchen. - 1 teaspoon salt
Salt is crucial for enhancing flavors and balancing sweetness. A pinch boosts all the other ingredients, ensuring a well-rounded taste. - 1/2 teaspoon nutmeg
Nutmeg adds a subtle spiciness to the dish, deepening the flavor profile. Its aromatic qualities complement the cinnamon beautifully. - 2 tablespoons unsalted butter
Butter adds richness and a hint of indulgence, ensuring that the casserole has a luscious texture. It also helps the potatoes brown and enhances flavor.
Directions & Preparation
Step 1: Preheat the oven to 350°F (175°C)
Preheating the oven is an essential first step that ensures even cooking. Starting with a hot oven helps to caramelize the sugars in the sweet potatoes and the brown sugar sauce, creating a beautifully baked casserole.
Step 2: Peel and slice the sweet potatoes
Using a sharp knife, carefully peel and slice the sweet potatoes into thin rounds, about 1/8 inch thick. Uniform slices ensure even cooking and make it easier for the layers to meld together, resulting in a cohesive texture.
Step 3: Sauté the onions until translucent
In a skillet, melt one tablespoon of butter over medium heat. Add the chopped onion and sauté until soft and translucent, about 5-7 minutes. This step brings out the natural sweetness of the onion and adds depth to the casserole.
Step 4: Combine the cream, brown sugar, cinnamon, nutmeg, and salt
In a bowl, whisk together the heavy cream, brown sugar, cinnamon, nutmeg, and salt. This mixture creates the flavorful sauce that will coat the sweet potatoes, enhancing their natural sweetness while binding everything together.
Step 5: Layer the sweet potatoes and onions in a baking dish
In a greased baking dish, arrange half of the sliced sweet potatoes at the bottom, followed by the sautéed onions, and then top with the remaining sweet potatoes. This layering method allows for even distribution of flavors throughout the casserole.
Step 6: Pour the cream mixture over the layers
Pour the prepared cream sauce evenly over the layered sweet potatoes and onions. This ensures that every layer is infused with the rich brown sugar flavor, helping to create a creamy consistency while baking.
Step 7: Dot with remaining butter and cover
Cut the remaining butter into small pieces and dot over the top of the casserole. Cover with aluminum foil to trap moisture and steam, promoting tender sweet potatoes while they bake.
Step 8: Bake for 45 minutes, then remove the foil
Bake the casserole covered for about 45 minutes. Removing the foil afterwards allows the top to brown and caramelize, intensifying the flavor and resulting in a delightful crispiness.
Step 9: Continue baking for an additional 15-20 minutes
Bake uncovered for an additional 15-20 minutes or until the sweet potatoes are tender and the top is bubbling and golden. This final baking period ensures a perfect texture and enhances the overall flavor profile.
Step 10: Let it cool before serving
Allow the casserole to cool for several minutes before serving. This resting time enables the layers to set, making it easier to cut into portions while preserving the integrity of the dish.

The Sweet Potato Selection
Choosing the right sweet potatoes is crucial for this casserole. Opt for firm, evenly shaped sweet potatoes without any soft spots or blemishes. Varieties like Garnet or Beauregard are popular for their sweetness and creamy texture. These are ideal for achieving that perfect, melt-in-your-mouth consistency everyone craves.
Sweet vs. Savory Balance
The interplay between sweet and savory flavors in this casserole elevates it beyond just a side dish. The caramelized onions provide a savory contrast to the sweetness of the brown sugar and sweet potatoes. This balance keeps your palate engaged and complements the rich cream sauce, making every bite satisfying.
Perfecting the Sauce
The cream sauce is what makes this casserole truly special. The brown sugar not only adds sweetness but also caramelizes during baking, creating a flavorful crust. Adjusting the seasoning with spices like cinnamon and nutmeg can elevate the overall taste. Feel free to experiment with other spices or even a splash of vanilla if desired.
FAQs
What can I do if my casserole turns out too thick?
If your sauce is too thick, you can add a splash more of heavy cream or milk to loosen it up. Stir gently to incorporate, and consider baking the casserole a bit longer to ensure everything is heated through.
How can I make this dish more festive?
To introduce a festive flair, consider adding chopped pecans or walnuts to the top before baking. They provide a delightful crunch that complements the soft sweet potatoes and adds a seasonal touch.
Can I add other root vegetables to the casserole?
Absolutely! Mixing in thinly sliced parsnips or carrots can add additional flavor and color. Just ensure they are sliced uniformly to match the cooking time of sweet potatoes.
What should I do if my casserole looks overcooked?
If your casserole appears overcooked or too dark on top, cover it with foil and lower the temperature slightly to allow the insides to finish cooking without further browning the top.
Is it necessary to use heavy cream for the sauce?
While heavy cream provides richness, you can substitute with half-and-half or a non-dairy cream for a lighter version. This will still yield great results while altering the richness.
How can I enhance the flavors if it tastes bland?
If you find your casserole lacks flavor, consider adding a pinch more salt or additional spices such as smoked paprika. A touch of freshly cracked black pepper can also elevate the flavor profile.
Conclusion
This scalloped sweet potato casserole with brown sugar sauce is a celebration of flavors and textures, enveloping tender sweet potatoes in a rich, creamy sauce. It's an ideal dish for gatherings, bringing warmth and comfort to your dining table.
Whether it's a holiday feast or a cozy family dinner, this casserole is sure to impress. With easily accessible ingredients and straightforward preparation, it invites home cooks of all skill levels to enjoy the rewards of hearty, home-cooked comfort food.
Recipe Card
Notes
Additional serving suggestions: pair with a crisp salad, garlic bread, or roasted seasonal vegetables for balance.
For make-ahead, prep components separately and assemble just before heating to preserve texture.
Taste and adjust with acid (lemon/vinegar) and salt right at the end to wake up flavors.