Ingredients:
1 ½ cups heavy cream
1 sprig fresh thyme
2 garlic cloves, chopped
½ teaspoon ground nutmeg
Butter
2 lb. russet potatoes, peeled & cut into 1/8-inch thick slices
½ onion, finely chopped
Salt and ground black pepper
½ cup grated Parmesan, plus more for broiling
Directions:
Preheat oven to 375°
In a saucepan, heat up the cream with a sprig of thyme, chopped garlic and nutmeg.
While cream is heating, butter a casserole dish. Place a layer of potato in an overlapping pattern; season with salt and pepper. Sprinkle 1/3 onion on potatoes. Remove cream from heat (remove thyme); then pour 1/3 mixture over potatoes & onions. Top with some Parmesan. Make 2 more layers. Bake uncovered, for 45 minutes. Sprinkle more Parmesan and broil until cheese browns, about 5 minutes.