Why it works: Pepper and parsley match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and 34,118 recipes mention both. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
The recipe
Ingredients
Contains: egg, milk, wheat (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Make the base
In a pot, combine broth, pepper, salt, small onions, and mace.
Stir in butter and flour, and simmer for 30 minutes.
Finish with cream
In a bowl, beat eggs with cream, parsley, and nutmeg.
Add boiled asparagus tops to the pot.
Do not let the mixture boil after adding the cream; heat gently while stirring continuously to prevent curdling.
Optionally, add boiled young French beans or peas for color.
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 aroma chemistry they share, and how many recipes mention both.
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Pepper + parsleytop 2% of all pairsAroma overlapstrongMentioned together34,118 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Butter + creamtop 3% of all pairsAroma overlapstrongMentioned together41,494 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Mace + parsleytop 5% of all pairsAroma overlapstrongMentioned together4,268 recipes
Shared aroma: myristicin (spice, warm).
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Pepper + macetop 6% of all pairsAroma overlapmoderateMentioned together12,257 recipes
Shared aroma: myristicin (spice, warm).
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Onion + parsleytop 6% of all pairsAroma overlapstrongMentioned together25,834 recipes
Shared aroma: coumarin (sweet, hay).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Thicken the cream mixture as they set gently with heat, giving the sauce body.
- Butter
- Adds richness and fat that carries flavor and smooths the sauce.
- Flour
- Thickens the broth into a body that clings to the asparagus.
- Cream
- Adds richness and a smooth, silky texture to the sauce.
- Boiled asparagus tops
- Provide the main vegetable flavor and tender texture in the dish.
The step that matters
Heat the cream gently without boiling. Eggs in the sauce can curdle and turn grainy if the mixture boils or is heated too fast. Stirring constantly and keeping the heat gentle keeps the custard-like texture smooth.
Flavor stand-ins for the mace
How well each one fits the dish's main ingredients (pepper, onion, butter, flour, egg, cream, parsley):
- Nutmegbetter flavor fit
- Celerybetter flavor fit
- Thymebetter flavor fit
- Macethe original
Fit is the average pairing score against pepper, onion, butter, flour, egg, cream, parsley. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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