Why it works: Celery and parsley 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 ↓
Split Pea Soup
Ingredients
Directions
Make the soup
In a large pot, combine water, soaked split peas, salt pork, and beef.
Boil until the mixture reduces to 2 quarts.
Press the soup through a colander back into the pot.
Finish and serve
Add celery and parsley to the soup.
Stir in the fried bread slices.
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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Celery + parsleytop 1% of all pairsSmell alikestrongCooked together6,810 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Pork + beeftop 1% of all pairsSmell alikestrongCooked together5,690 recipes
Shared aroma: 12-methyltridecanal (tallowy, beefy).
-
Bread + buttertop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Peas + breadtop 11% of all pairsSmell alikemoderateCooked together804 recipes
Shared aroma: hexyl acetate (fruity, apple).
-
Peas + celerytop 12% of all pairsSmell alikemoderateCooked together1,832 recipes
Shared aroma: linalool (floral, citrus).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Split peas
- Break down during simmering to thicken the soup and give it body.
- Salt pork
- Renders fat and seasoning into the broth, adding richness and savoury flavour.
- Beef
- Adds meaty flavour to the broth as it simmers.
- Celery
- Contributes aromatic, savoury flavour to the finished soup.
- Bread
- Fried in butter until brown, it adds toasty flavour and a little body when stirred in.
The step that matters
Boil until the mixture reduces to 2 quarts. Reducing by simmering concentrates the flavour of the broth and thickens it as the peas break down. Boiling too hard or too long can scorch the bottom of the pot, so stir and watch the level.
Swap the peas
How well each one fits the dish's main ingredients (pork, beef, celery, parsley, bread, butter):
- Beansfits better
- Walnutfits about as well
- Chestnutfits about as well
- Peasthe original
Fit is the average pairing score against pork, beef, celery, parsley, bread, 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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