Why it works: Barley and carrot match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 784 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓
Pearl Barley Soup
Ingredients
Directions
Prepare
Cook the meat until done.
Combine barley with good stock and butter in a pot.
Let the barley swell.
Slice the carrot finely.
Stew the sliced carrot slowly in butter.
Add the barley to the carrot mixture.
Finish the soup
Strain the soup through a sieve.
If the meat is not tender, boil it with the barley.
If the soup is too thin, mix flour with butter.
Add the flour-butter mixture to the soup.
Let the soup boil.
Season with coarse sea salt.
Serve.
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.
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Barley + carrottop 6% of all pairsSmell alikestrongCooked together784 recipes
Shared aroma: 2-nonenal (fatty, green).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Barley + flourtop 13% of all pairsSmell alikemoderateCooked together582 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Meat + barleytop 13% of all pairsSmell alikemoderateCooked together224 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Carrot + flourtop 13% of all pairsSmell alikemoderateCooked together8,029 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
- Pearl barley
- Swells as it cooks, giving the soup body and a chewy texture.
- Butter
- Enriches the soup and carries the carrot's flavor when the carrot is stewed.
- Flour
- Mixed with butter and stirred in to thicken the soup.
- Carrot
- Stewed slowly in butter to soften and add sweetness to the soup.
The step that matters
Add the flour-butter mixture to the soup. Flour must be cooked in fat before or as it meets liquid, or it forms lumps and thickens unevenly. Keep the soup boiling after adding it so the starch swells fully and the flour taste cooks out.
Swap the carrot
How well each one fits the dish's main ingredients (meat, barley, butter, flour):
- Leekfits better
- Shallotfits better
- Asparagusfits better
- Carrotthe original
Fit is the average pairing score against meat, barley, 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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