Pommes Anna or Anna potatoes, is a classic French dish of sliced, layered potatoes cooked in a very large amount of melted butter.The recipe calls for firm-fleshed potatoes and butter only. Potatoes are peeled and sliced very thin. The slices, salted and peppered, are layered into a pan (see below), generously doused with clarified butter, and baked/fried until they form a cake. Then they are turned upside down every ten minutes until the outside is golden and crispy.