POTATOES DELMONICO

For a large baking dish 4 cups of cold boiled diced potatoes will be required. Butter a baking dish, and put a layer of potatoes an inch deep in the bottom, and cover this with well made white sauce, and sprinkle slightly with salt and pepper; then add another layer of potato, and white sauce, and seasoning, and so on, until the dish is heaping full, and then sprinkle the top with grated cheese, and let brown well in a hot oven.