Three-Cheese Herbed Scalloped Potatoes

Three-Cheese Herbed Scalloped Potatoes turn a familiar comfort-food side into something especially worthy of the table. Thin slices of Yukon Gold potatoes bake in warm garlic-herb cream with Gruyère, sharp cheddar, and Parmesan. The center becomes tender and velvety, while the top turns golden, bubbly, and lightly crisp around the edges.

Fresh thyme and a touch of rosemary bring savory depth without competing with the cheese. The potatoes are arranged in overlapping layers, so every serving shows off those beautiful scalloped edges. Although this casserole feels elegant enough for Thanksgiving, Christmas, or Easter, it pairs just as easily with roast chicken, ham, steak, or a simple green salad. Most of the work is slicing and layering; the oven handles the rest. After a brief rest, the creamy sauce settles beautifully, making each scoop rich, neat, and ready for seconds.

Recipe Yield: 10 servings

INGREDIENTS

3 lb Yukon Gold potatoes, peeled and sliced 1/8-inch thick
1 cup freshly shredded Gruyère cheese, about 4 oz
1 cup freshly shredded sharp cheddar cheese, about 4 oz
1/2 cup finely grated Parmesan cheese, about 1 1/2 oz
2 cups heavy cream
1 cup whole milk
1 tbsp unsalted butter, softened, divided
3 garlic cloves, minced
1 tbsp fresh thyme leaves, finely chopped
1 tsp fresh rosemary, very finely chopped
2 tsp kosher salt
1/2 tsp freshly ground black pepper
2 tbsp finely chopped fresh chives

INSTRUCTIONS

1. Prepare the oven and dish:
Preheat the oven to 375°F. Butter a 9×13-inch baking dish. Cut a sheet of parchment paper large enough to cover the potatoes.

2. Slice the potatoes:
Wash and peel the potatoes, then slice them evenly to 1/8-inch thickness using a mandoline or sharp knife. Do not rinse the sliced potatoes because their natural starch helps thicken the cream.

3. Mix the cheeses:
Combine the Gruyère, cheddar, and Parmesan in a medium bowl.

4. Warm the herb cream:
Combine the heavy cream, milk, garlic, thyme, rosemary, salt, and black pepper in a medium saucepan. Heat over medium heat, stirring occasionally, until steaming and just beginning to simmer, about 4 to 5 minutes. Do not boil.

5. Assemble the potatoes:
Arrange one-third of the potatoes in overlapping rows in the prepared dish. Sprinkle with one-third of the cheese and pour over one-third of the herb cream. Repeat the layers twice, finishing with the remaining cheese and cream. Gently press the potatoes down so the slices are evenly coated.

6. Bake until tender:
Place the parchment directly over the potatoes. Set the dish on a rimmed baking sheet and bake for 55 minutes. Remove the parchment and bake uncovered for another 30 to 40 minutes, until the sauce bubbles throughout, the top is golden, and a thin knife slides easily through the potatoes in the center.

7. Rest and serve:
Let the scalloped potatoes rest for 15 minutes so the creamy sauce can thicken and settle. Garnish with fresh chives and serve warm.

Helpful Tips to Perfect This Recipe

• Keep the slices evenly thin. Potatoes sliced about 1/8-inch thick cook at the same rate and create tender, distinct layers. Always use the safety guard when working with a mandoline.
• Freshly shred the cheeses. Pre-shredded cheese contains anti-caking ingredients that can prevent the sauce from melting as smoothly.
• Check the center for doneness. A golden top does not always mean the potatoes underneath are ready. Test the deepest part with a thin knife; it should slide through without resistance.
• Watch the browning near the end. When the top is sufficiently golden before the potatoes are tender, loosely return the parchment to the surface and continue baking.
• Prepare it ahead when needed. Bake the dish completely, cool, and refrigerate for up to 2 days. Add 2 tbsp milk or cream around the edges, cover with parchment, and reheat at 350°F until hot throughout.