Home › Bread-Making › Bread with Potato Sponge
Bread with Potato Sponge
Pare and boil four or five potatoes, mash fine, and add one pint of flour; pour on the mixture first boiling water enough to moisten well, then about one quart of cold water, after which add flour enough to make a stiff batter. When cooled to "scarcely milk warm," put in one-half pint (or more will do no harm) of yeast, and let it stand in a warm place over night; in the morning add to this sponge one cup of lard, stir in flour, and knead well. The more kneading the finer and whiter the bread will be; pounding also with a potato-masher improves the bread greatly, and is rather easier than so much kneading. When quite stiff and well worked and pounded, let it rise again, and when light, make into loaves or biscuit, adding no more flour except to flour the hands and boardmerely enough to prevent the bread from sticking. Let it rise again, then bake; and immediately after taking from the oven, wrap in a wet towel until partly cold, in order to soften the crust. If yeast and flour are good (essentials in all cases), the above process will make good bread. - Mrs. Clara Morey
A 19th-century potato sponge bread, built in two stages over roughly 12 hours. It works with modern flour and yeast, but the leavening quantity and the missing salt both need attention before you begin.
- The yeast is not modern yeastA half pint of "yeast" here means homemade liquid yeast — a thin potato or hop ferment, mostly water with a modest population of cells. Substitute about 1 teaspoon of instant or active dry yeast for the whole batch, or a cup of active sourdough starter; a half pint of commercial yeast would be wildly out of range.
- No salt is listedThe recipe as printed contains no salt, whether by omission or because the cook took it for granted; the collection gives no guidance either way. Without salt the loaf tastes flat and the dough handles slacker; if you add it, figure roughly 2 teaspoons of fine salt per 4 cups of flour, worked in with the lard.
- "Scarcely milk warm"Milk warm is roughly body temperature, so scarcely milk warm is a little below — call it 90-95F. The recipe notes the point only once, but it matters: liquid much above about 120F starts to damage the yeast, and hotter still will kill it outright.
- Flour quantities are open-endedThe original gives one pint of flour into the potatoes and then "flour enough" twice over. Expect somewhere in the region of 8 to 10 cups total for a batch this size, added by feel; the recipe asks for a stiff batter at the sponge stage and a dough that is "quite stiff and well worked" at the end.
- Oven temperatureNo heat is specified because it was a wood range. Bake loaves at 400-425F until the internal temperature reaches 200-210F, generally 30-40 minutes for a standard loaf; biscuit-sized pieces need 15-20.
- The potato-masher trickPounding the dough is not folklore. Repeated compression does develop the dough, which suits a soft, lard-enriched mix, and the original is right that it is easier on the arms than extended kneading.
- Lard, and what to use insteadOne cup of lard for a batch of this size gives a tender, close crumb and good keeping quality. Modern shortening or softened butter substitutes cup for cup, though butter's water content makes the dough marginally slacker.
- The wet towelWrapping hot loaves in a damp cloth traps steam and softens a hard crust — a deliberate choice, not a mistake. Skip it if you want crackle instead of a soft sandwich crust.
- YieldFour or five potatoes plus that much flour makes a large batch: three to four standard loaves, or two loaves and a pan of biscuits. Halve it comfortably.
Potato sponge bread was a staple of American home baking before packaged yeast made it unnecessary. Before reliable dry yeast, a household kept its leaven alive in a jar, and boiled potato gave the culture what plain flour and water could not: abundant starch already gelatinized and easy to ferment, which kept the yeast working through a cold night. The resulting loaf keeps noticeably longer than a lean dough, because potato starch holds water — the same reason potato rolls remain soft today. The Dixie Cook Book credits recipes to the women who submitted them, and the parenthetical reassurances here — "or more will do no harm," "if yeast and flour are good (essentials in all cases)" — are the voice of a cook who knew her reader was working with unstandardized flour and a homemade ferment of uncertain strength.