Why it works: Cucumber and parsley match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 1,564 recipes. Both carry trans-2-hexenal, which smells green, leafy. The science ↓
Cucumbers a LA Poulette
Ingredients
Directions
Prepare
Peel and slice the cucumbers thinly or quarter them, removing the seeds and cutting into half‑inch lengths.
Soak the cucumbers in vinegar and sprinkle with salt for 30 minutes.
Drain and press them dry with a soft cloth.
Dredge the cucumbers in flour.
Cook and finish
Melt butter in a saucepan over medium heat, then add the cucumbers.
Cook gently for 10 minutes without browning them.
Gradually add enough stock or gravy to nearly cover the cucumbers.
Once boiling, skim off any fat, then season with salt and white pepper as needed.
When the cucumbers are tender, stir in the minced parsley.
Thicken the sauce with the yolks of 2 or 3 eggs.
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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Cucumber + parsleytop 7% of all pairsSmell alikestrongCooked together1,564 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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Cucumber + vinegartop 8% of all pairsSmell alikemoderateCooked together4,734 recipes
Shared aroma: 2-methylbutyl acetate (fruit).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + parsleytop 12% of all pairsSmell alikemoderateCooked together16,675 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Cucumber + flourtop 13% of all pairsSmell alikemoderateCooked together2,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and butter 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
- Cucumbers
- Main vegetable; softens during gentle cooking and becomes tender in the sauce.
- Flour
- Dusted on the cucumbers to help thicken the butter and stock into a sauce.
- Butter
- Fat for gentle cooking, adding richness and carrying flavour through the dish.
- Stock or gravy
- Liquid that cooks the cucumbers and forms the base of the sauce.
- Egg yolks
- Thicken the sauce as they heat, giving it a smooth, creamy body.
The step that matters
Thicken the sauce with the yolks. Egg yolks set when heated, so the sauce should be kept below a boil and stirred steadily. If it boils after the yolks go in, they can scramble and the sauce turns grainy.
Swap the white pepper
How well each one fits the dish's main ingredients (cucumber, vinegar, flour, butter, parsley, egg):
- Tarragonfits better
- Capersfits better
- Dillfits better
- White pepperthe original
Fit is the average pairing score against cucumber, vinegar, flour, butter, parsley, egg. 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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