Description
A rich and creamy Garlic Potato Gratin featuring tender Yukon Gold potatoes layered with a luscious roasted garlic and cheese sauce, baked to a golden brown perfection. This comforting dish combines the nutty flavors of Gruyère and Parmigiano Reggiano cheeses with aromatic spices and fresh chives for a delicious side that’s perfect for family dinners or special occasions.
Ingredients
Scale
Potatoes and Garlic
- 3 lb Yukon Gold potatoes (about 9–12 potatoes)
- 1 large head garlic
- Olive oil (for roasting garlic)
Cream and Cheese Mixture
- 1 cup whole milk
- 1/4 cup heavy cream
- 6 oz cream cheese
- 1/4 tsp nutmeg
- 1/4 tsp smoked paprika
- 1/2 tsp dried parsley
- 1/2 tsp onion powder
- 1/4 cup Gruyère cheese, grated (plus additional 1 3/4 cups for layering)
- 2 cups Gruyère cheese, grated (total including 1/4 cup above)
- 1/2 cup Parmigiano Reggiano, grated (plus more for topping)
- 1 tsp butter (for greasing baking dish)
- Salt (to taste)
- Black pepper (to taste)
Garnish
- Chives, chopped (to taste)
Instructions
- Roast the garlic: Preheat the oven to 375°F (190°C). Slice the top off the head of garlic, drizzle with olive oil, wrap tightly in foil, and roast for about 1 hour until soft and fragrant. Let cool slightly.
- Make the cream sauce: Increase oven temperature to 400°F (200°C). Squeeze the roasted garlic cloves into a blender. Add the milk, heavy cream, cream cheese, nutmeg, smoked paprika, dried parsley, onion powder, 1/4 cup of Gruyère, and the Parmigiano Reggiano. Blend until smooth and creamy.
- Prepare the potatoes: Wash and peel the Yukon Gold potatoes if desired. Slice them uniformly about 1/8-inch thick to ensure even cooking.
- Assemble the gratin: Butter a baking dish evenly with 1 tsp butter. Arrange a layer of sliced potatoes on the bottom, slightly overlapping. Pour a portion of the cream mixture over the potatoes and sprinkle with grated Gruyère cheese. Repeat the layering process until all potatoes and cream mixture are used, finishing with a generous layer of cheese on top.
- Bake the gratin: Cover the dish tightly with foil and bake on the middle rack for 45 minutes. Remove the foil and continue baking for an additional 15–20 minutes, until the top is golden brown and the potatoes are tender when pierced.
- Rest and garnish: Remove from the oven and let rest for 10 minutes to set. Garnish with freshly chopped chives, freshly ground black pepper, and extra Parmigiano Reggiano cheese before serving.
Notes
- For best results, slice potatoes uniformly to ensure even cooking.
- Roasting the garlic mellows its flavor and adds depth to the sauce.
- You can peel the potatoes for a smoother texture or leave skins on for added nutrition and rustic appeal.
- Letting the gratin rest before serving helps it set and improves slicing.
- This dish pairs well with roasted meats or a fresh green salad for a complete meal.
