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Bread

Bread Sauce

A savory sauce made by boiling onion with milk, soaking stale bread, then thickening with butter and flour.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Bread and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 27,232 recipes. Both carry delta-decalactone, which smells sweet, creamy. The science ↓

Bread Sauce

Ingredients

Directions

Make the sauce

  1. Boil the quartered onion with the milk and black pepper until the onion is soft and pulpy.

  2. Pour the milk over the grated stale bread and cover it.

  3. Let the mixture sit for 1 hour.

  4. Transfer the mixture to a saucepan, add the butter and flour, and bring to a boil.

Serve

  1. Serve hot.

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. Bread + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together27,232 recipes

    Shared aroma: delta-decalactone (sweet, creamy).

  2. Milk + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

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

  3. Milk + breadtop 11% of all pairs
    Smell alikemoderate
    Cooked together11,466 recipes

    Shared aroma: 2-undecenal (sweet).

  4. Onion + peppertop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

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

    Shared aroma: isobutyraldehyde (malty, green).

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

Stale white bread
Soaks up the milk and thickens the sauce into a soft, spoonable body.
Butter
Adds fat for a rich mouthfeel and smooth finish.
All-purpose flour
Helps thicken the sauce further and keeps it from separating.
Milk
Forms the liquid base that the bread absorbs and the onion flavours.

The step that matters

Bringing the mixture to a boil after adding butter and flour. Flour needs to be heated long enough to swell its starch and thicken the sauce; stirring keeps it smooth and prevents lumps or scorching on the bottom of the pan.

Swap the onion

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

  1. Capsicumfits better
  2. Potatofits better
  3. Shallotfits better
  4. Onionthe original

Fit is the average pairing score against milk, pepper, bread, 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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