Why it works: Parsley and celery match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 6,810 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Pea Soup
Ingredients
Directions
Prepare the peas
Soak the peas in water overnight.
Drain the peas.
Make the soup
Cook them in fresh water with parsley, celery seed, cayenne pepper, and salt until soft.
Mash the peas through a sieve.
Return the mashed peas to the soup.
Add a lump of butter.
Serve
Serve with diced fried bread.
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.
Photo for illustrative purposes only · Contact us to use it
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 + celerytop 1% of all pairsSmell alikestrongCooked together6,810 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Celery + peppertop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Butter + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Peas + breadtop 11% of all pairsSmell alikemoderateCooked together804 recipes
Shared aroma: hexyl acetate (fruity, apple).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Split or dried peas
- Form the body of the soup as they soften and break down into a thick purée.
- Butter
- Adds richness and a smooth, silky mouthfeel to the finished soup.
- Fried bread
- Provides a crisp, golden contrast in texture when served with the soft soup.
The step that matters
Mash the peas through a sieve. Peas must be fully softened before mashing; undercooked peas will not pass smoothly through the sieve and leave a grainy texture.
Swap the peas
How well each one fits the dish's main ingredients (parsley, celery, pepper, butter, bread):
- Walnutfits better
- Beansfits better
- Chickpeafits better
- Peasthe original
Fit is the average pairing score against parsley, celery, pepper, butter, bread. 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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