Why it works: Parsley and pepper match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Cream of Pea Soup
Ingredients
Directions
Prepare the peas
Drain the can of peas.
Add the cold water, salt, sugar, and parsley.
Cook for 20 minutes.
Remove the parsley.
Press the mixture through a sieve.
Make the soup
Cream the butter and flour together.
Add the hot milk and hot water, stirring constantly until smooth.
Add the pressed peas to the mixture.
Strain the soup before serving.
Serve hot.
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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Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + parsleytop 12% of all pairsSmell alikemoderateCooked together16,675 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Peas + parsleytop 13% of all pairsSmell alikemoderateCooked together1,885 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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
- Peas
- Provide the main body and flavor of the soup once pressed through a sieve.
- Butter
- Enriches the soup with fat and helps carry flavor.
- Flour
- Thickens the milk and water mixture, giving the soup its creamy body.
- Milk
- Adds richness and creaminess to the soup.
The step that matters
Add the hot milk and hot water, stirring constantly until smooth. Flour clumps when liquid is added to it unevenly. Stirring constantly while adding the hot liquids spreads the starch evenly so it thickens into a smooth, lump-free base.
Swap the peas
How well each one fits the dish's main ingredients (milk, flour, sugar, parsley, pepper, butter):
- Almondfits better
- Chestnutfits better
- Chickpeafits better
- Peasthe original
Fit is the average pairing score against milk, flour, sugar, parsley, pepper, butter. 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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