Why it works: Lemon and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 14,037 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓
Poulette Sauce
Ingredients
Directions
Make the sauce
In a saucepan, heat the chicken stock seasoned with onions, carrot, celery, salt, and pepper.
Just before serving, stir in the lemon juice, egg yolk diluted with cream, and chopped parsley.
Cook the sauce over hot water for about 5 minutes, ensuring it does not boil.
Serve
Serve immediately.
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 + parsleytop 1% of all pairsSmell alikestrongCooked together14,037 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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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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Chicken + lemontop 16% of all pairsSmell alikemoderateCooked together5,092 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
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Chicken + peppertop 16% of all pairsSmell alikemoderateCooked together19,958 recipes
Shared aroma: piperonal (bitter, coconut).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Chicken stock
- Forms the savory liquid base that the sauce is built on.
- Egg yolk
- Thickens the sauce gently as it warms and gives it a rich body.
- Cream
- Adds richness and softens the sauce, helping the yolk blend smoothly.
- Lemon juice
- Adds acidity that brightens the flavor and balances the richness.
The step that matters
Keep the sauce below a boil after adding the egg yolk. Egg yolk thickens through gentle heating, but if the sauce boils it can scramble, turning grainy and curdled instead of smooth.
Swap the parsley
How well each one fits the dish's main ingredients (chicken, lemon, egg, cream, pepper):
- Tarragonfits about as well
- Parsleythe original
- Nutmegfits less well
- Thymefits less well
Fit is the average pairing score against chicken, lemon, egg, cream, pepper. 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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