Why it works: Pepper and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Mushroom Sauce
Ingredients
Directions
Prepare
Cut off the stalks of the mushrooms.
Place the mushrooms in boiling water.
Make the sauce
Season with a small amount of coarse sea salt, black pepper, and butter.
Boil until tender.
Thicken the sauce with 1 tablespoon of flour and a piece of butter the size of a walnut.
Add a little lemon juice for extra flavor, if desired.
Serve
Pour the sauce over the meat.
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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Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Mushroom + buttertop 7% of all pairsSmell alikemoderateCooked together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
-
Mushroom + peppertop 11% of all pairsSmell alikemoderateCooked together13,580 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).
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Mushroom + lemontop 15% of all pairsSmell alikemoderateCooked together4,633 recipes
Shared aroma: 2-nonenal (fatty, 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
- Mushrooms
- Provide the main body and earthy flavor of the sauce.
- Butter
- Adds richness and fat, carrying flavor and giving the sauce a smooth mouthfeel.
- Flour
- Thickens the sauce as it cooks with the butter, giving it body.
The step that matters
Thicken the sauce with flour and butter. Flour must be cooked into the butter and liquid so starch can swell and thicken the sauce. Adding it to liquid without mixing well can cause lumps, and insufficient cooking leaves a raw floury taste.
Swap the lemon
The recipe marks lemon as optional. How well each one fits the dish's main ingredients (mushroom, pepper, butter, flour):
- Lemonthe original
- Plumfits about as well
- Limefits less well
- Cherryfits less well
Fit is the average pairing score against mushroom, pepper, 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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