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 ↓
Allemand Sauce
Ingredients
Directions
Make the sauce
In a saucepan, combine chicken stock, salt, mushrooms, lemon peel, and parsley.
Bring to a boil, then reduce heat and simmer for 30 minutes.
Thicken with flour, boil for a few minutes, then strain.
Finish the sauce
Stir in beaten egg yolks and heat gently, avoiding boiling.
Remove from heat and stir in butter and 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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Lemon + parsleytop 1% of all pairsSmell alikestrongCooked together14,037 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Chicken + mushroomtop 4% of all pairsSmell alikemoderateCooked together4,172 recipes
Shared aroma: 1-butyl acetate (fruity, banana).
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Mushroom + buttertop 7% of all pairsSmell alikemoderateCooked together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
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Mushroom + parsleytop 11% of all pairsSmell alikemoderateCooked together6,132 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 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
- Egg yolks
- Thicken the sauce and add richness as they gently set with heat.
- Flour
- Thickens the stock into a smooth, lightly bodied sauce.
- Butter
- Adds fat for a smooth, glossy texture and rounded flavor.
- Lemon juice
- Adds acidity that brightens the rich sauce.
The step that matters
Stir in egg yolks and heat gently. Egg yolks thicken by gently setting around 160°F; if the sauce boils, the proteins can scramble and turn grainy, and the sauce cannot be rescued.
“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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