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A barley soup thickened with flour, simmered for three hours in salted water with a touch of brown sugar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Flour and barley work together. They rank in the top 13% of all ingredient pairs, and cooks put them together in 582 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Soups, Sauces, and Forcemeats

Ingredients

Directions

Prepare

  1. Mix the flour and pearl barley together in a large pot.

  2. Add the hot water, coarse sea salt, and brown sugar.

Simmer

  1. Stir occasionally until boiling.

  2. Reduce heat and simmer gently for 3 hours.

  3. Ensure the barley is perfectly tender before serving.

Cool and store

  1. Store in a flat vessel to prevent fermentation.

  2. Stir occasionally until nearly cold.

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. Flour + barleytop 13% of all pairs
    Smell alikemoderate
    Cooked together582 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Flour + sugartop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  3. Barley + sugartop 21% of all pairs
    Smell alikemoderate
    Cooked together755 recipes

    Shared aroma: beta-damascenone (apple, rose).

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

What each ingredient does

Flour
Thickens the pot as it cooks, giving the soup a fuller body.
Pearl barley
Softens during long simmering, providing the main texture and body of the soup.
Hot water
Serves as the cooking liquid that hydrates and softens the barley.
Brown sugar
Adds a mild sweetness that rounds out the savory flavor.

The step that matters

Ensure the barley is perfectly tender before serving. Pearl barley is a whole grain with a dense starch structure that only softens fully with sustained, gentle simmering. Stopping early leaves the grains firm and chewy, so the soup's texture stays unfinished.

“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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