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Scalloped Sweet Potato Casserole with Brown Sugar

Scalloped Sweet Potato Casserole with Brown Sugar

This Scalloped Sweet Potato Casserole with Brown Sugar is a deliciously comforting and vibrant side dish perfect for any occasion. Featuring tender sweet potato slices bathed in a rich, buttery brown sugar sauce, it's an easy-to-make crowd-pleaser that brings warmth and sweetness to your table.
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Prep Time 20 minutes
Cook Time 1 hour 5 minutes
Rest Time 10 minutes
Total Time 1 hour 25 minutes
Course: Casserole, Side Dish
Ingredients Equipment Method Notes

Ingredients
  

  • 3 lbs Sweet Potatoes (approximately 4-5 medium-sized), peeled and sliced into 1/8-inch thick rounds. For best results, use a mandoline for even slices.
  • 1/2 cup Unsalted Butter (1 stick), melted, plus 2 tablespoons for greasing the dish.
  • 1/2 cup Brown Sugar packed (light or dark brown sugar will work, dark offers a deeper molasses flavor).
  • 1 cup Heavy Cream for a rich and creamy sauce.
  • 1/2 cup Milk (whole milk recommended for creaminess).
  • 2 tablespoons All-Purpose Flour for thickening the sauce.
  • 1 teaspoon Vanilla Extract pure vanilla extract for aromatic sweetness.
  • 1 teaspoon Ground Cinnamon for a warm, comforting spice note.
  • 1/2 teaspoon Ground Nutmeg freshly grated if possible, for enhanced flavor.
  • 1/2 teaspoon Salt or to taste, to balance the sweetness.
  • 1/2 cup Pecans (optional) chopped, for a delightful crunch.
  • 1 cup Marshmallows (optional) mini marshmallows or 1/2 cup large marshmallows, for a classic sweet potato topping.

Equipment

  • 9x13-inch baking dish
  • Mandoline slicer (recommended)
  • Medium saucepan
  • Whisk
  • Aluminum Foil

Method
 

  1. Preheat your oven to 375°F (190°C). Grease a 9x13 inch baking dish with 2 tablespoons of melted butter. Peel the sweet potatoes and slice them evenly into 1/8-inch thick rounds. A mandoline slicer is highly recommended for uniform thickness, which ensures even cooking.
    3 lbs Sweet Potatoes, 1/2 cup Unsalted Butter
  2. In a medium saucepan over medium heat, melt the remaining 1/2 cup of unsalted butter. Whisk in the all-purpose flour and cook for 1 minute, stirring constantly, to create a roux. Gradually whisk in the heavy cream and milk until smooth. Bring the mixture to a gentle simmer, then reduce heat to low. Stir in the brown sugar, vanilla extract, ground cinnamon, ground nutmeg, and salt. Continue to stir until the brown sugar is fully dissolved and the sauce is slightly thickened, about 2-3 minutes. Remove from heat.
    1/2 cup Unsalted Butter, 2 tablespoons All-Purpose Flour, 1 cup Heavy Cream, 1/2 cup Milk, 1/2 cup Brown Sugar, 1 teaspoon Vanilla Extract, 1 teaspoon Ground Cinnamon, 1/2 teaspoon Ground Nutmeg, 1/2 teaspoon Salt
  3. Arrange about one-third of the sliced sweet potatoes in an even layer at the bottom of the prepared baking dish, overlapping slightly. Pour about one-third of the brown sugar cream sauce evenly over the sweet potatoes. Repeat this layering process two more times, ending with a generous layer of sauce on top.
    3 lbs Sweet Potatoes
  4. Cover the baking dish tightly with aluminum foil. Bake for 45-50 minutes, or until the sweet potatoes are tender when pierced with a fork. This initial baking period ensures the sweet potatoes cook through and absorb the delicious sauce.
  5. If using pecans, sprinkle them evenly over the casserole after the first baking stage. If using marshmallows, remove the foil and top with marshmallows. Return the casserole to the oven, uncovered, and bake for an additional 10-15 minutes, or until the pecans are toasted and fragrant, or the marshmallows are golden brown and gooey. Watch carefully to prevent burning the marshmallows.
    1/2 cup Pecans (optional), 1 cup Marshmallows (optional)
  6. Let the casserole rest for 5-10 minutes before serving. This allows the sauce to set slightly, making it easier to serve. Enjoy your warm, decadent Scalloped Sweet Potato Casserole with Brown Sugar!

Notes

You'll absolutely adore this Scalloped Sweet Potato Casserole with Brown Sugar for its unparalleled comfort and flavor. The star here is undoubtedly the perfectly tender sweet potato slices, swimming in a luxurious, creamy brown sugar sauce infused with warm spices like cinnamon and nutmeg. It's a dish that feels incredibly special without being overly complicated, making homemade holiday spreads or cozy weeknight dinners all the more manageable.
Beyond its delightful taste, making this casserole at home is a fantastic way to save money compared to store-bought versions or restaurant sides. Plus, you get to customize it to your heart's content! Whether you prefer the satisfying crunch of toasted pecans or the gooey sweetness of melted marshmallows, these simple additions elevate an already fantastic dish. It’s significantly more luscious and comforting than a basic roasted sweet potato, offering a truly indulgent experience. Don't wait – whip up this amazing casserole today and taste the difference!
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