Why it works: Parsley and lemon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 14,037 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓
Collared Eels
Ingredients
Directions
Poach the eels
Thoroughly cleanse the eels and place them in the stock with the onion, bay leaf, vinegar, cloves, peppercorns, and some salt.
Boil until the eels are tender, then remove them, slip out the bones, and cut into 2‑inch pieces.
Strain the cooking liquid into a clean saucepan and boil without a lid, skimming until clear.
Set the jelly
Add the gelatine and stir until dissolved, then let it cool.
Rinse a plain mold in cold water and arrange the pieces of eel, egg slices, and parsley inside.
Slowly pour in the gravy, a tablespoon at a time, until the mold is full.
Stand the mold in cold water for 7‑8 hours, then dip in warm water and turn out.
Serve
Garnish with parsley, lemon, and beetroot before serving.
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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Parsley + lemontop 1% of all pairsSmell alikestrongCooked together14,037 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Clove + peppertop 5% of all pairsSmell alikestrongCooked together17,451 recipes
Shared aroma: ethyl octanoate (fruity, wine).
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Parsley + beetroottop 5% of all pairsSmell alikestrongCooked together745 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
- Eels
- Form the main body of the dish, providing the flesh set within the jelly.
- Gelatine
- Sets the cooking liquid into a firm jelly that holds the mold's shape when turned out.
- Stock
- Forms the liquid base that is clarified and set, giving the jelly its savoury flavour.
- Hard-boiled eggs
- Add texture and a mild richness contrasting with the eel inside the jelly.
The step that matters
Skimming the strained liquid until clear. Skimming removes coagulated proteins and fat that would cloud the jelly. A clear, boiled-down liquid sets to a clean, glossy surface and a clearer appearance when turned out.
Swap the onion
How well each one fits the dish's main ingredients (vinegar, clove, egg, pepper, parsley, lemon, beetroot):
- Shallotfits better
- Lettucefits better
- Horseradishfits better
- Onionthe original
Fit is the average pairing score against vinegar, clove, egg, pepper, parsley, lemon, beetroot. 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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