Source: Chez Panisse Vegetables I love the simplicity of the Chez Panisse Vegetables's recipe, so I've written this one out exactly as it appears in the book and have offered some guidance on quantities/timing below: "Rub an earthenware gratin dish with smashed peeled garlic and butter. Layer overlapping slices of potato cut 1/8-inch thick. Season with salt, pepper, and thyme leaves. Make another layer of potato slices and season again. Moisten with cream, cream and chicken stock, or milk to the top level of the top layer of potatoes. According to taste, sprinkle the top with grated Parmesan or Gruyère cheese, and distribute thin shavings of butter on top. Bake 45 minutes to 1 hour in a preheated oven at 375ºF until nicely browned. Make it Ahead You can make this ahead of time two ways:  You can bake the entire thing ahead of time, let it cool completely, then cover with foil. To reheat: Place it covered in a preheated 350ºF oven for about 15 to 20 minutes or until cream-stock mixture is bubbling. Uncover if necessary for 5 to 10 minutes to get the cheese bubbling. You can bake the dish halfway or three-fourths way — the top will begin to brown, but there will still be a fair amount of liquid in it. In other words, the liquid will not have completely thickened. Remove it from the oven, let it cool completely; then cover in foil. Reheat uncovered at 350ºF until it is done — the top will be browner and the cream mixture will have thickened sufficiently.