Why it works: Butter and bread 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 ↓
Thick Barley Soup
Ingredients
Directions
Make the soup
In a pot, combine barley and flour with butter over low heat for a few seconds.
Add veal stock and salt, then bring to a boil while stirring continuously.
Boil for 2 hours, adding more stock if the soup thickens too much.
Strain and finish
Strain the soup through a fine sieve, pressing well to extract liquid.
Return the soup to heat, adjusting thickness with more stock if necessary.
Taste and adjust salt, then finish with cream or butter in the serving bowl.
Serve with fried croutons of bread.
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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Butter + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Barley + breadtop 12% of all pairsSmell alikemoderateCooked together201 recipes
Shared aroma: 2-nonenal (fatty, green).
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Barley + flourtop 13% of all pairsSmell alikemoderateCooked together582 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and butter 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
- Thickens the soup as its starches soften and release during long simmering.
- Flour
- Toasted briefly in butter, it helps bind and thicken the soup body.
- Butter
- Adds richness and a rounded flavor to the base and finish.
- Veal stock
- Forms the liquid base, providing savory depth and body.
- Cream
- Adds smoothness and richness when stirred in at the end.
The step that matters
Boiling for 2 hours while adding stock. Barley keeps absorbing liquid and thickening as it cooks, so the soup can turn stiff or scorch. Adding stock as needed keeps the consistency loose and the barley fully softened.
“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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