Why it works: Chervil and shallot match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 266 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Cod Sauce
Ingredients
Directions
Chop the parsley, chervil, shallots, cloves, bay leaf, and mushrooms.
In a saucepan, melt the butter over medium heat.
Add the chopped ingredients and sauté briefly.
Stir in the flour and mix well.
Gradually add milk or cream until the sauce reaches your desired consistency.
Finally, stir in the scalded chopped parsley before serving.
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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Chervil + shallottop 1% of all pairsSmell alikestrongCooked together266 recipes
Shared aroma: coumarin (sweet, hay).
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Parsley + shallottop 1% of all pairsSmell alikestrongCooked together3,737 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Parsley + cherviltop 1% of all pairsSmell alikestrongCooked together774 recipes
Shared aroma: estragole (anise, licorice).
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Shallot + mushroomtop 4% of all pairsSmell alikemoderateCooked together1,982 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Shallot + clovetop 5% of all pairsSmell alikestrongCooked together1,677 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Melts to form the fat base that carries the aromatics and flour.
- Flour
- Thickens the sauce when cooked briefly in the melted butter.
- Milk or cream
- Adds liquid that loosens the thickened base into a smooth sauce.
- Mushrooms
- Add savoury, earthy flavour as they sauté with the aromatics.
The step that matters
Adding the milk or cream. Add the liquid gradually so the flour-butter mixture disperses evenly. Adding it all at once can form lumps that are hard to smooth out.
Swap the clove
How well each one fits the dish's main ingredients (parsley, chervil, shallot, mushroom, butter, flour, milk):
- Capersfits better
- Tarragonfits better
- Thymefits better
- Clovethe original
Fit is the average pairing score against parsley, chervil, shallot, mushroom, butter, flour, milk. 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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