Why it works: Lemon and pepper 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 ↓
Italian Sauce
Ingredients
Directions
Make the sauce base
Combine mushrooms, onion, eschalots, and ham in a clean quart stewpan.
Fry for 5 minutes until golden.
Add stock and bouquet garni.
Bring to a boil, then simmer for 45 minutes.
Finish and serve
Stir in Chablis (or sauternes or madeira) and lemon juice, season with pepper and salt.
In another stewpan, melt butter and mix in flour.
Gradually strain the sauce into the second stewpan while stirring.
The sauce is ready.
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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Lemon + peppertop 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 + oniontop 10% of all pairsSmell alikemoderateCooked together10,626 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Mushroom + peppertop 11% of all pairsSmell alikemoderateCooked together13,580 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Mushrooms
- Provide the main earthy flavour and body of the sauce as they soften and release their juices.
- Butter
- Adds richness and fat, carrying flavour and giving the sauce a smooth mouthfeel.
- Flour
- Thickens the sauce when cooked with butter to form a roux.
- Stock
- Forms the liquid base of the sauce, adding savoury depth.
- Chablis
- Adds acidity and wine flavour that brightens the rich mushroom base.
- Lemon juice
- Adds acidity that balances richness and sharpens the flavours.
The step that matters
Gradually strain the sauce into the roux while stirring. Adding the liquid slowly while whisking keeps the flour and butter dispersed, which prevents lumps and gives a smooth, evenly thickened sauce.
Swap the lemon
How well each one fits the dish's main ingredients (mushroom, onion, ham, pepper, butter, flour):
- Avocadofits about as well
- Lemonthe original
- Plumfits about as well
- Limefits about as well
Fit is the average pairing score against mushroom, onion, ham, 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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