Peel six medium-sized mealy potatoes, boil in two quarts of water, press and drain both potatoes and water through a colander; when cool enough so as not to scald, add flour to make a thick batter, beat well, and when lukewarm, add one-half cup potato yeast. Make this sponge early in the morning, and when light turn into a bread pan, add a tea-spoon salt, half cup lard, and flour enough for a soft dough; mix up, and set in a warm, even temperature; when risen, knead down and place again to rise, repeating this process five or six times; cut in small pieces and mold on the bread-board in rolls about one inch thick by five long; roll in melted butter or sweet lard, and place in well-greased baking pans (nine inches long by five wide and two and a half in depth, makes a convenient-sized pan, which holds fifteen of these rolls; or, if twice the width, put in two rows); press the rolls closely together, so that they will only be about half an inch in width. Let rise a short time and bake twenty minutes in a hot oven; if the top browns too rapidly, cover with paper. These rolls, if properly made, are very white, light and tender.
Or, make rolls larger, and just before putting them in the oven, cut deeply across each one with a sharp knife. This will make the cleft roll, so famous among French cooks.