Sift into a large pan a pound and a half of flour, and rub into it half a pound of butter. Mix in three-quarters of a pound of powdered white sugar, an melt a small tea-spoonful of sal-aratus or pearl-ash in a pir of the best cider. Pour the cider into the other ingredients while it is foaming, and stir the whole very hard. Have ready a buttered square pan, put in the mixture, and set it immediately in a rather brisk oven. Bake it an hour or more, according to its thickness. This is a tea cake, and should be eaten fresh. Cut it into squares, split and butter them.