Potatoes, cheese and cream. I mean really, how much more delicious or decadent can you get? It took about 2 seconds to realize I needed to make this when I made a special lamb loin dinner for my hubby last weekend. It went perfectly! This was rich and actually fairly easy to assemble. Like most Martha Stewart recipes, it was pretty flawless with the exception of the initial cooking time of the potatoes, which I have edited to reflect below.
Barely adapted from: Martha Stewart
1 tablespoon unsalted butter, room temperature
2 1/2 pounds Yukon Gold potatoes
2 1/2 cups heavy cream
1 1/2 cups whole milk
1 garlic clove, smashed
1 teaspoon coarse salt
1/4 teaspoon ground white pepper
4 ounces Gruyere cheese
1/8 teaspoon freshly grated nutmeg
Preheat oven to 400 degrees with rack in middle position. Spread butter across bottom and sides of a 2-quart baking dish.
Peel potatoes and slice 1/8 inch thick. Place slices in a large bowl of cold water and drain thoroughly.
Bring heavy cream, milk, and garlic to a simmer in a large, wide saucepan. Add potatoes, salt, and pepper and continue to simmer, stirring occasionally, until potatoes are tender, 20 minutes. * This took 10 minutes for me. I would start checking at 10 minutes.
Using a slotted spoon, transfer half the potatoes to prepared baking dish and sprinkle with half of the cheese. Add remaining potatoes to baking dish and pour enough cream mixture over potatoes to just cover. Sprinkle with remaining cheese, place on a rimmed baking sheet, and bake until bubbly and golden brown on top, 40 to 45 minutes.
Remove from oven and grate nutmeg over top just before serving.