Why it works: Butter and mushroom are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 12,525 recipes. Both carry trans-2-decenal, which smells waxy, orange. The science ↓
White Sauce with Mushrooms
Ingredients
Directions
Make the sauce
Melt the butter in a saucepan.
Add the flour and mix well.
Stir in the white stock and bring to a boil.
Add the mushrooms and let simmer for 20 minutes.
Partially cover the pan to allow butter to rise and skim it off.
Strain the mixture into another saucepan.
Finish
Add the cream and lemon juice, then bring to a boil while stirring.
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 + mushroomtop 7% of all pairsSmell alikemoderateCooked together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Mushroom + lemontop 15% of all pairsSmell alikemoderateCooked together4,633 recipes
Shared aroma: 2-nonenal (fatty, green).
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Mushroom + creamtop 15% of all pairsSmell alikelowCooked together4,500 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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
- Butter
- Enriches the sauce with fat and flavour as it melts into the roux.
- Flour
- Thickens the stock with the butter, giving the sauce body.
- White stock
- Forms the liquid base that the flour thickens into the sauce.
- Mushrooms
- Release earthy flavour into the stock during simmering.
- Cream
- Adds richness and a smoother, silkier texture to the sauce.
- Lemon juice
- Adds acidity that brightens the rich, creamy sauce.
The step that matters
Skimming the butter off the surface. Butter floats on the simmering liquid and can make the sauce greasy. Partially covering the pan lets it rise so it can be skimmed off cleanly.
Swap the lemon
How well each one fits the dish's main ingredients (butter, flour, mushroom, cream):
- Coconutfits better
- Vanillafits better
- Strawberryfits better
- Lemonthe original
Fit is the average pairing score against butter, flour, mushroom, cream. 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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