Sweet Potato Gratin

Creamy & Cheesy Scalloped Sweet Potatoes: The Ultimate Holiday Side Dish

Indulge in the rich, comforting embrace of these Scalloped Sweet Potatoes, a truly irresistible addition to any festive table. Thinly sliced sweet potatoes are lovingly layered and bathed in a luxurious blend of heavy cream and savory Gruyere cheese, creating an unbelievably creamy and cheesy side dish that perfectly balances sweet and savory notes. Simple to prepare yet profoundly satisfying, this recipe promises to become a cherished part of your holiday traditions, offering a delightful twist on classic potato dishes.

Pin this recipe for later and savor the flavor!

A dish of creamy Scalloped Sweet Potatoes topped with melted cheese and fresh thyme, ready to serve.

Why Scalloped Sweet Potatoes Are a Must-Try Holiday Classic

For many, holiday meals are synonymous with an array of delicious side dishes, and rightfully so! While traditional scalloped potatoes hold a special place in our hearts, these Scalloped Sweet Potatoes offer a wonderful opportunity to diversify your festive spread. The inherent sweetness of the potatoes, when combined with rich cream and sharp cheese, creates a complex flavor profile that is both familiar and excitingly different. It’s a side dish that provides a comforting warmth, making it an ideal companion for holiday roasts like ham or turkey, and it stands out with its vibrant color and exceptional taste.

Imagine serving these alongside some crisp Glazed Carrots, tender Roasted Asparagus, and your favorite Homemade Dinner Rolls. With such a lineup, the side dishes truly become the stars of the meal! These aren’t just for the major holidays; their comforting and indulgent nature makes them perfect for any special Sunday dinner or family gathering where you want to impress without overwhelming your kitchen with complicated recipes.

The Allure of Simplicity: An Effortless Indulgence

One of the most appealing aspects of this Scalloped Sweet Potato recipe is its beautiful simplicity. You won’t find yourself wrestling with complex roux, intricate cheese sauces, or an endless list of exotic ingredients. The magic happens through the elegant layering of thinly sliced sweet potatoes, a generous drizzle of heavy cream, and a sprinkle of aromatic herbs and seasoning, all crowned with a blanket of delicious cheese. This straightforward approach allows the natural flavors of the sweet potatoes to shine through, enhanced by the creamy richness and cheesy goodness.

This minimalist method doesn’t compromise on flavor; in fact, it highlights the quality of each component, creating a harmonious and deeply satisfying dish. It’s a testament to the idea that some of the most memorable meals are born from simple, high-quality ingredients and a straightforward preparation. For busy holiday hosts or anyone seeking a delicious yet easy-to-manage side, this recipe is a true lifesaver, delivering maximum impact with minimal fuss.

Collection of fresh ingredients for making scalloped sweet potatoes, including sweet potatoes, cream, thyme, and Gruyere cheese.

Key Ingredients for Unforgettable Flavor

Crafting the perfect batch of Scalloped Sweet Potatoes starts with selecting quality ingredients. Each component plays a vital role in achieving that creamy, cheesy, and utterly delicious outcome:

  • Sweet Potatoes: You’ll need approximately 2 1/2 pounds of sweet potatoes. This typically translates to 3 medium-sized potatoes or about 5-6 smaller ones. Look for firm, unblemished potatoes. Their natural sweetness is the foundation of this dish, offering a wonderful contrast to the savory elements.
  • Heavy Cream: This is non-negotiable for achieving the desired rich and creamy texture. Do not substitute with milk or half-and-half, as they lack the fat content necessary to create that luscious, velvety sauce. The heavy cream coats each potato slice, infusing the dish with unparalleled richness.
  • Thyme: Fresh thyme is highly recommended for its vibrant, earthy aroma and flavor, which beautifully complements the sweet potatoes and cheese. If fresh is unavailable, you can use dried thyme, but be mindful of the quantity—about a teaspoon will suffice, sprinkled very sparingly between layers. You could also experiment with other fresh herbs like rosemary or sage for a different aromatic twist.
  • Salt and Pepper: These essential seasonings are applied to each layer of potatoes. Remember to season lightly at each step, as the cumulative effect will be just right, preventing over-seasoning while ensuring every bite is flavorful.
  • Gruyere Cheese: Gruyere is the star cheese here, known for its nutty, slightly sweet, and savory notes that melt beautifully and create a golden, bubbly top. It’s a classic choice for scalloped dishes. If Gruyere is hard to find, excellent alternatives include Jarlsberg, Emmental, or Fontina, all of which offer similar melting properties and complementary flavors.
Peeled and thinly sliced sweet potatoes neatly arranged on a wooden cutting board, ready for layering.

Mastering the Sweet Potato Slice for Optimal Cooking

While the recipe is inherently simple, the most critical step for achieving perfectly cooked scalloped sweet potatoes lies in how you slice them. Evenly sliced potatoes ensure uniform cooking, preventing some pieces from being undercooked while others turn mushy. Begin by thoroughly washing and peeling your sweet potatoes. For easier and more stable slicing, it’s helpful to trim off both ends of the potatoes to create flat surfaces.

If you own a mandoline slicer, this is the ideal tool for achieving consistently thin, uniform slices with minimal effort and maximum efficiency. Set it to approximately 1/8-inch thickness for best results. For those without a mandoline, a sharp chef’s knife is perfectly adequate. Take your time and aim for slices that are about 1/8-inch thick. While perfect precision isn’t required, striving for uniformity will greatly improve the final texture of your dish. Thinner slices will cook more quickly and absorb the creamy sauce better, resulting in a more tender and flavorful outcome.

Three step-by-step photos illustrating the layering process for scalloped sweet potatoes in a baking dish.

Step-by-Step Guide to Creamy Scalloped Sweet Potatoes

Once your sweet potatoes are perfectly sliced, assembling this dish is wonderfully straightforward. Follow these steps to create a show-stopping side:

  1. Prepare Your Baking Dish: Preheat your oven to 375°F (190°C). Lightly spray a 2-quart shallow casserole dish with nonstick cooking spray. A dish measuring roughly 9×13 inches or a similar size works well. If you don’t have a specific shallow dish, a simple Pyrex casserole dish is a reliable choice.
  2. Begin Layering: Arrange a single, even layer of sliced sweet potatoes across the bottom of the prepared baking dish. Ensure there are no large gaps, overlapping slightly if necessary.
  3. Cream and Seasoning: Drizzle approximately 2 tablespoons of heavy cream evenly over the potato layer. Sprinkle lightly with a portion of the fresh thyme, then season with a pinch of salt and a grind of black pepper. Remember, you’ll be seasoning each layer, so a light touch is key to avoid over-salting.
  4. Repeat and Build Layers: Continue this layering process: potatoes, cream, thyme, salt, and pepper. Depending on the size and thickness of your potato slices, you’ll likely create between 7 and 10 layers. Once all the potatoes are in the dish, pour any remaining heavy cream over the very top layer, ensuring it’s evenly distributed. Finish with one last light sprinkle of seasoning.
  5. Initial Bake: Cover the baking dish tightly with aluminum foil. Place it in the preheated oven and bake for 30 minutes. This initial covered bake allows the potatoes to steam and tenderize in the creamy sauce without drying out.
  6. Uncover and Finish Baking: After 30 minutes, carefully remove the dish from the oven and remove the foil. Return the uncovered dish to the oven and continue baking for another 30 minutes, or until the potatoes are fork-tender and the top is lightly browned.
A baking dish of partially baked sweet potatoes, with shredded Gruyere cheese being sprinkled over the top before final baking.
  1. Add the Cheese Topping: Once the potatoes are tender, remove the dish from the oven. Evenly sprinkle the shredded Gruyere cheese over the entire surface of the potatoes.
  2. Broil to Perfection: Change your oven setting to broil. Return the dish to the oven, keeping a very close eye on it. Broil for just 3-5 minutes, or until the cheese has melted, become bubbly, and turned a beautiful golden brown. Be careful, as cheese can burn quickly under the broiler.
  3. Rest and Serve: Once removed from the oven, allow the Scalloped Sweet Potatoes to rest for a few minutes before serving. This allows the sauce to set slightly and makes for easier serving. Then, dig in and enjoy this incredibly creamy and cheesy indulgence!
A full baking dish of golden-brown Scalloped Sweet Potatoes, garnished with fresh thyme leaves.

Expert Tips for Perfect Scalloped Sweet Potatoes

Achieving the perfect creamy, tender, and cheesy scalloped sweet potatoes is easy with a few expert tips:

  • Potato Size Matters: While any sweet potatoes will work, bigger sweet potatoes are often preferred for this recipe. Larger potatoes tend to hold their structure better during baking, resulting in fewer “soggy” pieces and a more consistent texture throughout the dish. If using smaller potatoes, ensure your slices are slightly thicker to help them maintain their integrity.
  • Checking for Doneness: The best way to determine if your potatoes are cooked through is to gently insert a fork into the center of the dish. If the fork slides in easily with little resistance, the potatoes are perfectly fork-tender. If there’s still significant resistance, the potatoes may need a little more baking time, especially if your slices were on the thicker side.
  • The “Au Gratin” Distinction: Technically, because this recipe includes a generous layer of cheese on top, it could also be classified as sweet potatoes au gratin. While the cheese is optional for pure scalloped potatoes, it truly elevates this dish, adding a layer of savory richness and an irresistible golden crust. We highly recommend keeping the cheese for that extra touch of indulgence!
  • Flavor Variations: Don’t hesitate to experiment with different herbs or spices. A pinch of nutmeg can add a classic, warm note that pairs beautifully with cream and sweet potatoes. For a touch of heat, a tiny sprinkle of cayenne pepper in one of the layers can provide a subtle kick.
A wooden spoon scooping out a serving of scalloped sweet potatoes, showing the creamy layers and melted cheese pull.

Storage and Make-Ahead Convenience for Stress-Free Entertaining

Planning for holiday meals or busy weeknights often involves preparing dishes in advance. These Scalloped Sweet Potatoes offer excellent flexibility:

Storing Leftovers

Any leftover Scalloped Sweet Potatoes can be stored in an airtight container in the refrigerator for 3-5 days. To reheat, you can use the microwave for individual portions, or for a crispier top, warm in a preheated oven at 300°F (150°C) until heated through, about 15-20 minutes, covering loosely with foil if the top starts to brown too much.

Preparing Ahead for Stress-Free Holidays

To ease your holiday cooking burden, you can prepare these scalloped sweet potatoes up to 3 days in advance. Follow the recipe through step 6 (the initial 30 minutes covered bake and the subsequent 30 minutes uncovered bake). Let the dish cool completely to room temperature. Once cooled, cover it tightly with plastic wrap or aluminum foil and refrigerate. When you’re ready to serve, preheat your oven to 350°F (175°C). Bake the covered dish for 20-30 minutes, or until thoroughly warmed through. Remove the foil, add the shredded cheese, and then broil for 3-5 minutes until the cheese is melted and bubbling, as per the original instructions. This make-ahead method ensures a fresh-tasting dish with a perfectly golden, cheesy topping right when you need it.

Freezing Considerations

Due to the high dairy content, freezing this dish is generally not recommended. Heavy cream and cheese can sometimes develop a grainy or separated texture after thawing and reheating. While it won’t be unsafe, the quality and creamy consistency may be compromised. For best results, stick to the make-ahead refrigeration method.

A portion of creamy Scalloped Sweet Potatoes served on a white plate, garnished with a sprig of fresh thyme.

Complementary Holiday Side Dishes

Scalloped Sweet Potatoes pair wonderfully with a variety of main courses and other side dishes. Here are some other delicious potato recipes and holiday staples that would complete your festive feast:

  • The Best Sweet Potato Casserole: For those who love a sweeter sweet potato dish.
  • Funeral Potatoes: A classic cheesy potato casserole, perfect for a crowd.
  • My Favorite Mashed Potato Recipe: Creamy, buttery, and utterly comforting.
  • Mashed Sweet Potatoes with Brown Butter: A rich and aromatic sweet potato mash.
  • Ranch Potatoes: Flavorful and easy, a family favorite.
  • Crockpot Cheesy Potatoes: Convenience meets cheesy perfection.

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Scalloped Sweet Potatoes

Creamy and cheesy, these Scalloped Sweet Potatoes are an easy addition to any holiday table. Layers of thinly sliced sweet potatoes are covered in cream and cheese in this indulgent savory side dish.

Author: Deborah Harroun

Prep Time: 20 minutes

Cook Time: 1 hour 5 minutes

Total Time: 1 hour 25 minutes

Servings: 8 servings

Course: Side Dish

Cuisine: American

full dish of scalloped sweet potatoes topped with fresh thyme

Ingredients

  • 2 1/2 lbs sweet potatoes
  • 1 1/2 cups heavy cream
  • 1 tablespoon fresh thyme, chopped
  • Salt and pepper, to taste
  • 2 cups shredded Gruyere cheese

Instructions

  1. Preheat the oven to 375°F (190°C). Spray a 2-quart baking dish lightly with nonstick cooking spray.
  2. Peel the sweet potatoes and cut them into rounds about 1/8-inch thick.
  3. Line the bottom of the baking dish with a single layer of sweet potatoes. Drizzle about 2 tablespoons of cream over the potatoes. Sprinkle lightly with some of the fresh thyme, then season with salt and pepper. (Remember to season lightly, as you will be seasoning each layer.)
  4. Repeat the layers, making 7-10 layers depending on potato size. Pour any remaining cream over the top layer. Cover the dish with foil and bake for 30 minutes. Remove the foil and continue to cook until the potatoes are tender and lightly browned on top, about 30 more minutes.
  5. Remove the potatoes from the oven and sprinkle evenly with the shredded Gruyere cheese. Change the oven setting to broil and return the dish to the oven. Broil until the cheese has melted and is bubbling and golden, about 3-5 minutes. Watch carefully to prevent burning. Let sit for a few minutes before serving.

Recipe Notes:

Nutrition information provided as an estimate only. Various brands and products can change the counts. Any nutritional information should be used as a general guide.

Nutrition Information

Serving: 1/8 of recipe, Calories: 253kcal (13%), Carbohydrates: 29g (10%), Protein: 11g (22%), Fat: 11g (17%), Saturated Fat: 6g (38%), Polyunsaturated Fat: 3g, Trans Fat: 0g, Cholesterol: 37mg (12%), Sodium: 317mg (14%), Fiber: 4g (17%), Sugar: 6g (7%)

Keywords:

scalloped sweet potatoes, sweet potato au gratin, creamy sweet potatoes, cheesy sweet potatoes, holiday side dish, easy sweet potato recipe

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