Why it works: Parsley and pepper match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Eel Soup
Ingredients
Directions
Prepare the eels
Skin the eels and remove the bones.
Cut the eels into very small pieces.
Fry the eel pieces lightly in a stewpan with a bit of butter and a sprig of parsley.
Make the soup
Add the water, crust of bread, mace, whole pepper, onion, and sweet herbs.
Cover and stew until the fish breaks from the bones.
Strain the mixture.
Pound the strained mixture to a paste.
Pass the paste through a sieve.
Finish and serve
Toast the bread.
Cut the toasted bread into dice.
Pour the boiling soup over the diced bread.
Add the scallops of eel.
Mix 1 pint of cream or milk with 1 teaspoon of flour rubbed smooth.
Serve.
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.
-
Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Butter + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Parsley + oniontop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eels
- Provide the main body of the soup, with flesh that breaks away from the bones during stewing.
- Cream or milk
- Adds richness and a smooth, creamy texture to the finished soup.
- Flour
- Thickens the cream or milk slightly so it blends smoothly into the soup.
- Bread
- Soaks up the broth and adds body when diced and served in the soup.
The step that matters
Pound and sieve the strained mixture. Pounding and passing the cooked solids through a sieve breaks them down into a smooth paste, so the soup stays fine-textured rather than gritty or full of small bones.
Swap the mace
How well each one fits the dish's main ingredients (butter, parsley, bread, pepper, onion, cream, flour):
- Thymefits better
- Capersfits better
- Nutmegfits better
- Macethe original
Fit is the average pairing score against butter, parsley, bread, 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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