Why it works: Mushroom and thyme are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 2,557 recipes. Both carry 1-octen-3-one, which smells mushroom, metallic. The science ↓
Bechamel, or White Sauce
Ingredients
Directions
Combine veal, bacon, butter, onion, mace, mushroom buttons, thyme, and bay leaf in a stew pan.
Fry over low heat without browning.
Thicken with flour.
Add broth and cream.
Boil for 30 minutes, stirring constantly.
Strain through a soup strainer.
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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Mushroom + thymetop 5% of all pairsSmell alikemoderateCooked together2,557 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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Onion + thymetop 7% of all pairsSmell alikemoderateCooked together11,171 recipes
Shared aroma: coumarin (sweet, hay).
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Butter + mushroomtop 7% of all pairsSmell alikemoderateCooked together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
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Onion + mushroomtop 10% of all pairsSmell alikemoderateCooked together10,626 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Butter + flourtop 12% of all pairsSmell alikelowCooked 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
- Flour
- Thickens the liquid into a smooth, body-rich sauce as its starch swells with heat.
- Butter
- Carries the flavours of the aromatics during the gentle frying and adds richness.
- Cream
- Adds richness and a silky texture to the finished sauce.
- Broth
- Supplies the liquid base and savoury depth for the sauce.
The step that matters
Boil for 30 minutes, stirring constantly. Flour-thickened liquids can scorch on the base of the pan and lump if left unattended. Constant stirring keeps the starch dispersed and the sauce smooth while it thickens and reduces.
Flavor stand-ins for the mace
How well each one fits the dish's main ingredients (veal, ham, butter, onion, mushroom, thyme, flour):
- Marjorambetter flavor fit
- Parsleybetter flavor fit
- Garlicbetter flavor fit
- Macethe original
Fit is the average pairing score against veal, ham, butter, onion, mushroom, thyme, flour. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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