Why it works: Pepper and parsley 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 Pie
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Preheat the oven to 350°F (175°C).
Line a dish with potato paste.
Assemble and bake
Place the cut eels in the dish and season with pepper, coarse sea salt, parsley, and a little butter.
Pour stock or gravy over the eels, add mushroom catsup, and dredge with flour.
Cover with potato paste and bake for 1 hour and 15 minutes.
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 + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Potato + parsleytop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Butter + mushroomtop 7% of all pairsSmell alikemoderateCooked together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
-
Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Potato + mushroomtop 9% of all pairsSmell alikestrongCooked together968 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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 pie, becoming tender and flavourful as they cook.
- Stock or gravy
- Provides moisture so the filling stays juicy rather than drying in the oven.
- Flour
- Thickens the cooking liquid into a light gravy around the eels.
- Mushroom catsup
- Adds a concentrated savoury, umami depth to the gravy.
- Butter
- Adds richness and fat that carries flavour through the filling.
The step that matters
Cover with potato paste and bake for 1 hour and 15 minutes. The sealed crust traps steam so the eels cook gently in their own juices and gravy. Baking long enough ensures the fish is fully cooked and tender, while the flour-thickened liquid needs time to set into a smooth sauce.
Swap the potato
How well each one fits the dish's main ingredients (pepper, parsley, butter, mushroom, flour):
- Shallotfits better
- Carrotfits better
- Chivefits about as well
- Potatothe original
Fit is the average pairing score against pepper, parsley, butter, mushroom, 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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