Preheat oven to 375 degrees. Slice the potatoes into coins between 1/8 and 1/4-inch thick. In a large sauce pot combine the potatoes, milk, a little nutmeg, salt and. Preheat oven to 375 degrees. Peel potatoes, and place in a bowl of water to prevent discoloring. Rub inside of a 9-by-12-inch oval baking dish with cut sides of garlic. Heat cream, milk, nutmeg, and 1 1/2 teaspoons salt in a medium saucepan over medium heat until bubbles form around edge.