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 ↓
Celery with White Sauce
Ingredients
Directions
Prepare the celery
Trim the roots and cut the celery to about six inches.
Wash the celery carefully and tie them together with string.
Cook the celery
Place the celery in a saucepan with the onion, mace, whole pepper, salt, and enough boiling water to cover.
Boil until the celery is tender, then drain and remove the string.
Make the white sauce
In a saucepan, melt the butter and mix in the flour.
Add enough of the reserved boiling water to make a sauce and season with salt.
Off the heat, stir in the beaten egg yolk mixed with the strained lemon juice.
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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Celery + lemontop 3% of all pairsSmell alikestrongCooked together3,467 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Celery + peppertop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Celery + oniontop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Celery
- Is the main vegetable that becomes tender through boiling.
- Butter
- Carries the flour and gives the white sauce its rich flavour and smooth body.
- Flour
- Thickens the melted butter so it can form a smooth sauce with the cooking water.
- Egg yolk
- Enriches and thickens the sauce when stirred in off the heat.
- Lemon juice
- Adds acidity that brightens the rich sauce.
The step that matters
Off the heat, stir in the egg yolk. Adding the yolk over direct heat can scramble it and make the sauce grainy. Removing the pan from the heat first lets the yolk thicken gently and evenly.
Swap the mace
How well each one fits the dish's main ingredients (celery, onion, pepper, butter, flour, egg, lemon):
- Parsleyfits better
- Tarragonfits better
- Thymefits better
- Macethe original
Fit is the average pairing score against celery, onion, pepper, butter, flour, egg, lemon. 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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