Make a dough exactly as described in the last, but using only half the butter; have a deep-edged baking-sheet well buttered, and when the dough is ready, turn it on to a dresser, well floured; divide into small pieces the size of walnuts, which mould into round balls, and place close together upon the baking-sheet; put them in a warm place to prove, and bake well in a moderate oven; when cold, divide and cut each one in halves (making a top and bottom) which brown in the oven as directed for rusks.