Thinly sliced potatoes layered with a creamy garlic-Parmesan sauce and baked until golden and bubbling. A rich, comforting side dish that’s perfect for holidays or weeknight dinners.
2½ to 3 lbs Yukon Gold or Russet potatoes, thinly sliced
2 cups heavy cream or half-and-half
1 cup grated Parmesan cheese (plus more for topping)
2–3 garlic cloves, minced
1 tbsp butter
½ tsp salt
¼ tsp black pepper
½ tsp fresh thyme (optional)
Preheat oven to 375°F. Grease a 9×13-inch baking dish.
Sauté garlic in butter, add cream, salt, pepper, thyme. Simmer, then stir in Parmesan.
Layer half of the potatoes, pour half the sauce. Repeat.
Top with extra Parmesan. Cover and bake 40 minutes.
Uncover and bake 20–25 minutes more until golden and tender.
Let rest 10–15 minutes before serving.