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Bread

Bread Sponge

A potato-based bread made with sugar, butter, flour, yeast, and water, baked after rising.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Bread Sponge

Ingredients

Directions

Make the sponge

  1. Boil the potatoes.

  2. Mash the potatoes while hot.

  3. Stir in sugar, butter, and tepid water.

  4. Add flour.

  5. Beat to a smooth batter.

  6. Mix in yeast.

  7. Set aside overnight.

Knead and shape

  1. In the morning, knead in enough flour to make a stiff dough.

  2. Knead vigorously for 15 minutes.

  3. Let rise until light.

  4. Knead for another 10 minutes.

  5. Mold into loaves.

  6. Let rise until light and fluffy.

Recipe from a historical cookbook (Internet Archive).

Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.

  1. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Potato + buttertop 13% of all pairs
    Smell alikemoderate
    Cooked together6,456 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

  3. Sugar + flourtop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  4. Potato + flourtop 15% of all pairs
    Smell alikemoderate
    Cooked together5,355 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Sugar + buttertop 17% of all pairs
    Smell alikemoderate
    Cooked together98,233 recipes

    Shared aroma: guaiacol (smoky, sweet).

Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Potatoes
Add starch and moisture, giving the bread a soft, tender crumb.
Flour
Forms the gluten network that gives the dough structure and holds the rise.
Yeast
Produces carbon dioxide as it ferments, leavening the dough so it rises.
Butter
Adds fat that softens the crumb and gives a richer texture.
Sugar
Feeds the yeast and adds a little sweetness and browning.

The step that matters

Knead the stiff dough thoroughly. Kneading develops the gluten network that traps gas from the yeast. If the dough is under-kneaded or too wet, it will not hold its shape or rise well into light loaves.

Swap the potato

How well each one fits the dish's main ingredients (sugar, butter, flour):

  1. Arrowrootfits better
  2. Shallotfits better
  3. Sweet potatofits better
  4. Potatothe original

Fit is the average pairing score against sugar, butter, flour. Candidates are from the same food group and used in at least 100 recipes.

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.

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