Why it works: Onion and pepper are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Pea Soup
Ingredients
Directions
In a pot, combine salt, boiled water, mace, peppercorns, and chopped onion.
Cook slowly until peas are soft, then strain the mixture.
Add boiling water to make 2 quarts and stir in the lump of butter.
Blend flour with a little cold water, then rub through a sieve into the soup.
Stir until smooth, then add salt and pepper, and simmer for 10 minutes.
Serve with crackers.
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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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
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Mace + peppertop 16% of all pairsSmell alikelowCooked together12,257 recipes
Shared aroma: myristicin (spice, warm).
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Mace + oniontop 17% of all pairsSmell alikelowCooked together7,078 recipes
Shared aroma: eugenol (clove, spicy).
Butter and flour 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
Swap the mace
How well each one fits the dish's main ingredients (onion, butter, flour, pepper):
- Parsleyfits better
- Garlicfits better
- Turmericfits better
- Macethe original
Fit is the average pairing score against onion, butter, flour, pepper. Candidates are from the same food group and used in at least 100 recipes.
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