Why it works: Beef and mushroom are a kitchen classic. They rank in the top 4% of all ingredient pairs, and 3,232 recipes mention both. Both carry 2,4-nonadienal, which smells fatty, green. The science ↓
Good Brown Soup
Ingredients
Directions
Make the soup base
Melt the butter in a pot over medium heat.
Stir in the flour to make a roux, cooking until lightly browned.
Add the chopped ham or bacon and mushrooms, cooking for a few minutes.
Pour in the brown stock and bring to a simmer.
Simmer and serve
Cook for 20-30 minutes, stirring occasionally, then 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 aroma chemistry they share, and how many recipes mention both.
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Beef + mushroomtop 4% of all pairsAroma overlapmoderateMentioned together3,232 recipes
Shared aroma: 2,4-nonadienal (fatty, green).
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Butter + mushroomtop 7% of all pairsAroma overlapmoderateMentioned together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
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Butter + flourtop 12% of all pairsAroma overlaplowMentioned together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Beef + hamtop 15% of all pairsAroma overlapmoderateMentioned together1,729 recipes
Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).
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Ham + mushroomtop 15% of all pairsAroma overlapmoderateMentioned together1,486 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
Butter and flour share little aroma chemistry, yet 124,287 recipes mention both: they likely 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
- Brown stock
- Forms the liquid base and provides the main savoury beef flavour of the soup.
- Butter
- Carries flavour and forms the fat base for the roux.
- Flour
- Thickens the soup as a roux, giving it body.
- Ham or bacon
- Adds salty, savoury meaty flavour to the soup.
- Mushrooms
- Add earthy flavour and a tender texture to the soup.
The step that matters
Cooking the roux. Flour must cook in the butter until lightly browned to remove raw starch taste and build nutty flavour. Adding stock too early or rushing the browning leaves the soup tasting floury and thin.
“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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