Made simply with sliced potatoes, heavy cream, and grated cheese, potatoes au gratin is the ultimate comfort food. Based on Jann Segal's recipe on Once Upon a Chef.
3poundrusset potatoabout 9 medium russet potatoes, peeled and sliced very thin
2teaspoonKosher salt
¼teaspoonfreshly ground black pepper
1 ¼cupParmesan cheesefinely grated
2 ½cupheavy whipping cream
3sprigfresh thymefor serving (optional)
Instructions
Preheat the oven to 350°F and set an oven rack in the middle position.
Grease an 9x13-inch baking dish with butter.
In a large mixing bowl, toss the potatoes with the salt and pepper until evenly coated.
Arrange some of the potato slices, edges overlapping, in a single layer on the bottom of the prepared baking dish. Sprinkle a quarter of the cheese over the potatoes, and then pour a quarter of the cream over the cheese. Repeat with the remaining potatoes, cheese, and cream, forming 3-4 layers. Pour any leftover cream over top.
Place in the oven covered with aluminum foil for 40 minets. Uncover and continue baking for addition 20 minets or until the potatoes are tender when pierced with a knife and golden brown on top.
Let the dish settle on the counter for about ten minutes.
Sprinkle with fresh thyme, if using, and then serve.
Reheating Instructions
Heat in microwave on medium power until heated through, mixing halfway through heating time.