Dinner · Part 1 of 3: Ingredients
Creamy Parmesan Scalloped Sweet Potatoes

- Prep
- Cook
- Total
- Serves
- 6
Discover how to elevate your dinner table with a classic scalloped sweet potato dish that combines comfort and elegance. This recipe transforms simple ingredients into a rich, creamy, and golden-brown masterpiece that is perfect for any gathering.
By focusing on thin, uniform slices and a well-balanced cream sauce, the result is a tender side dish that pairs beautifully with various main courses, providing a delightful contrast of textures and flavors that will impress guests and family alike.
Scalloped potatoes are a timeless side dish, and using sweet potatoes introduces a wonderful natural sweetness that pairs perfectly with earthy thyme and sharp parmesan. This preparation focuses on creating a velvety, garlic-infused cream that softens the potatoes while the parmesan creates a crispy, golden top layer.
It is a straightforward process that yields professional results, making it an excellent choice for holiday dinners or simple weeknight meals. The key is in the layering and the quality of the ingredients, ensuring each bite is perfectly seasoned and satisfying.
Ingredients
- 3 lbs sweet potatoes, peeled and sliced into thin rounds
Garlic Thyme Cream
- 1 1/2 cups heavy cream
- 3 cloves garlic, minced
- 1 tbsp fresh thyme leaves
- 1 cup parmesan cheese, freshly shredded
Why this recipe works
The method of overlapping thin potato slices is essential because it allows the garlic-infused cream to circulate between the layers as they cook. This process ensures that every slice becomes tender and absorbs the savory flavors of the sauce, preventing the dish from drying out. By arranging them tightly, the potatoes maintain their structure, resulting in a beautiful, layered presentation that holds together when scooped onto plates.
Using heavy cream provides the necessary fat content to create a rich, luxurious sauce that thickens naturally as it reduces in the oven. When combined with the starch released by the sweet potatoes, the cream develops a creamy consistency that coats each slice perfectly.
The addition of fresh thyme and garlic adds aromatic depth, which cuts through the richness of the dairy and balances the natural sweetness of the potatoes, ensuring a well-rounded flavor profile.
Notes and substitutions
Choose firm, smooth-skinned sweet potatoes for the best results, as they hold their shape better during the baking process. If fresh thyme is unavailable, dried thyme can be substituted, but use half the amount to avoid overpowering the delicate cream sauce. For the cheese, freshly shredded parmesan is highly recommended over pre-shredded varieties, as it melts more smoothly and provides a superior crust that is essential for the texture of this dish.
A mandoline slicer is the preferred tool for achieving consistent thickness, which is vital for even cooking. If a mandoline is not available, a sharp chef's knife and careful attention to consistency will suffice.
The ceramic baking dish helps conduct heat evenly, which is beneficial for the slow cooking required for the potatoes to become tender. Ensure the dish is deep enough to contain the cream without spilling over during the bubbling phase of the baking process.
- heavy cream: half-and-half can be used for a lighter sauce, though the texture will be less velvety.
- parmesan cheese: pecorino romano offers a sharper, saltier profile that pairs well with the sweetness of the potatoes.
Equipment
- Mandoline slicer
- 9x13-inch ceramic baking dish
- Small mixing pitcher
- Large serving spoon
Up next · Part 2 of 3
3 steps · 45 min of cooking · what to look for at each stage
Step-by-step instructions (Part 2)