Why it works: Parsley and onion are a kitchen classic. They rank in the top 9% of all ingredient pairs, and 25,843 recipes mention both. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Petits Pois a LA Parisienne
Ingredients
Directions
Cook the peas
Wash the peas and place them in a stewpan with butter.
Add salt, sugar, cold water, parsley, and spring onions.
Cover and simmer on low heat for 30 minutes.
Remove the parsley and onions.
Finish and serve
Incorporate ½ ounce of fresh butter mixed with 1 teaspoon refined flour into the peas.
Mix well, taste for sweetness, and add more sugar if needed.
Serve immediately as a side dish.
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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Parsley + oniontop 9% of all pairsAroma overlapmoderateMentioned together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Peas + parsleytop 13% of all pairsAroma overlapmoderateMentioned together1,885 recipes
Shared aroma: trans-2-hexenal (green, leafy).
-
Peas + oniontop 13% of all pairsAroma overlapmoderateMentioned together5,460 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + oniontop 15% of all pairsAroma overlapmoderateMentioned together42,912 recipes
Shared aroma: decanal (soap, orange peel).
-
Butter + parsleytop 15% of all pairsAroma overlapmoderateMentioned together28,563 recipes
Shared aroma: trans-2-hexenal (green, leafy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Peas
- Form the main body of the dish, cooking down gently in their own moisture.
- Butter
- Adds richness and a smooth, silky mouthfeel to the cooked peas.
- Refined flour (in the method)
- Thickens the butter and juices into a light, glossy coating for the peas.
- Sugar
- Adds sweetness that balances the natural earthiness of the peas.
The step that matters
Adding the butter and flour mixture. Flour must be fully blended into the butter before it goes in, and the peas stirred well, so the liquid thickens smoothly without lumps or a floury taste.
Flavor stand-ins for the peas
How well each one fits the dish's main ingredients (butter, sugar, parsley, onion):
- Chickpeabetter flavor fit
- Chestnutbetter flavor fit
- Almondbetter flavor fit
- Peasthe original
Fit is the average pairing score against butter, sugar, parsley, onion. 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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