Why it works: Pepper and carrot match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 14,555 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Eel Soup
Ingredients
Directions
Make the broth
Clean the eels and place them in a pot with water, bread crust, mace, whole pepper, onion, and sweet herbs.
Cover and simmer until the eels are completely broken down.
Strain the mixture to remove solids.
Finish the soup
Toast bread and cut it into dice.
Pour the hot soup over the toasted bread.
For added richness, mix cream with flour until smooth and stir it into the soup.
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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Pepper + carrottop 6% of all pairsSmell alikestrongCooked together14,555 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + carrottop 6% of all pairsSmell alikemoderateCooked together21,601 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Carrot + flourtop 13% of all pairsSmell alikemoderateCooked together8,029 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Mace + carrottop 15% of all pairsSmell alikemoderateCooked together2,592 recipes
Shared aroma: myristicin (spice, warm).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eels
- Break down during simmering to give the soup its body and savory flavor.
- Rich cream
- Adds fat and richness, softening the broth's flavor and mouthfeel.
- Flour
- Thickens the cream mixture so it blends smoothly and lightly thickens the soup.
- Bread
- Toasted dice soak up hot broth, adding texture and a toasted aroma.
The step that matters
Stir the cream and flour mixture in smoothly. Flour clumps if added dry or unblended. Mixing it with cream first and stirring it into hot soup lets starch disperse evenly and thicken without lumps.
Swap the carrot
The recipe marks carrot as optional. How well each one fits the dish's main ingredients (bread, mace, pepper, onion, cream, flour):
- Leekfits about as well
- Potatofits about as well
- Capsicumfits about as well
- Carrotthe original
Fit is the average pairing score against bread, mace, pepper, onion, cream, flour. 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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