Peel and slice raw POTATOES thin, the same as for frying. Butter an earthen dish, put in a layer of POTATOES, and season with salt, pepper, butter, a bit of onion chopped fine, if liked; sprinkle a little flour. Now put another layer of POTATOES and the seasoning. Continue in this way till the dish is filled. Just before putting into the oven, pour a quart of hot milk over. Bake three-quarters of an hour.
Cold boiled POTATOES may be cooked the same. It requires less time to bake them; they are delicious either way. If the onion is disliked it can be omitted.
The Whitehouse Cookbook, by Mrs. F.L. Gillette (Year 1887)