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 ↓
Richmond Eel Pie
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare the eels
Wash the eels in salt and water, then dry them with a cloth.
Make the sauce
In a stewpan, melt the butter.
Add the eels, mushrooms, parsley, onion or shallot, pepper, salt, bay leaf, lemon rind, sherry, and stock.
Bring the sauce to a boil.
Skim the sauce.
Remove the eels once cooked, placing them in a pie dish.
Strain the sauce.
Thicken it with flour kneaded with butter.
Add lemon juice.
Assemble and bake
Pour over the eels.
Top with hard‑boiled egg yolks.
Line the dish with pastry.
Cover with more pastry.
Brush with egg.
Bake in a preheated oven at 400°F (200°C) for about 1 hour.
Serve hot or cold.
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).
-
Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Mushroom + sherrytop 5% of all pairsSmell alikemoderateCooked together1,176 recipes
Shared aroma: 2-methoxy-4-methylphenol (smoky, clove).
-
Butter + mushroomtop 7% of all pairsSmell alikemoderateCooked together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eels
- Provide the main flesh, which firms and becomes tender when gently simmered in the sauce.
- Butter
- Enriches the sauce and, kneaded with flour, thickens it with a rich, smooth body.
- Flour
- Thickens the strained sauce so it coats the eels and sets as the pie cools.
- Sherry
- Adds acidity and aromatic depth to the simmering sauce.
- Hard-boiled egg yolks
- Add richness and a creamy texture to the filling.
- Mushrooms
- Add earthy flavour and moisture to the sauce.
The step that matters
Thicken the strained sauce before adding lemon juice. Flour kneaded with butter must be cooked into the hot liquid to swell and gelatinise the starch; undercooked flour leaves a raw, pasty taste and a thin sauce that will not hold together in the pie.
Swap the onion
How well each one fits the dish's main ingredients (butter, mushroom, parsley, pepper, lemon, sherry, flour):
- Shallotfits better
- Spinachfits better
- Carrotfits better
- Onionthe original
Fit is the average pairing score against butter, mushroom, parsley, pepper, lemon, sherry, 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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