Why it works: Celery and carrot match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 10,173 recipes. Both carry myristicin, which smells spice, warm. The science ↓
Ionia Pea Soup
Ingredients
Directions
Make the soup
Add dried peas and water to a large pot.
Boil for 4 hours.
Chop onions, celery, carrot, and turnips.
Add the chopped vegetables to the pot.
Season with salt and pepper.
Boil for 2 more hours, adding water if needed.
Strain the soup.
Finish and serve
Stir in butter.
Serve hot with diced toast.
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 + carrottop 1% of all pairsSmell alikestrongCooked together10,173 recipes
Shared aroma: myristicin (spice, warm).
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Carrot + turniptop 1% of all pairsSmell alikestrongCooked together8,002 recipes
Shared aroma: coumarin (sweet, hay).
-
Celery + turniptop 2% of all pairsSmell alikemoderateCooked together4,418 recipes
Shared aroma: coumarin (sweet, hay).
-
Celery + peppertop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Onion + turniptop 5% of all pairsSmell alikestrongCooked together7,585 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
- Dried peas
- Form the main body of the soup, breaking down during long boiling to thicken it.
- Onions
- Add savory sweetness and aroma as they soften into the broth.
- Celery
- Adds aromatic flavor and body to the soup base.
- Turnips
- Contribute mild sweetness and soft texture to the simmered vegetables.
- Butter
- Adds richness and a smooth, rounded mouthfeel to the finished soup.
The step that matters
Boil for 2 more hours, adding water if needed. Peas need prolonged simmering to fully soften and break down. If the liquid reduces too far, the soup can scorch on the bottom of the pot, so water must be added to keep the peas submerged and the soup at the right consistency.
Swap the peas
How well each one fits the dish's main ingredients (onion, celery, carrot, turnip, pepper, butter):
- Beansfits better
- Lentilsfits better
- Chickpeafits better
- Peasthe original
Fit is the average pairing score against onion, celery, carrot, turnip, 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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