Why it works: Bread and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 27,232 recipes. Both carry delta-decalactone, which smells sweet, creamy. The science ↓
Baked Fish
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 the fish
Clean the fish carefully and wipe it dry.
Rub the fish with coarse sea salt and dredge it with flour.
For the dressing, mix soaked bread, chopped onion, salt, pepper, and butter.
Fill the fish with the dressing and tie or sew it up.
Bake
Place the fish in a pan with a few slices of salt pork or butter.
Pour in enough hot water to prevent burning.
To lift the fish out without breaking, place a cloth in the pan first.
Bake for 1 to 1.5 hours at 350°F (175°C).
Make the sauce and serve
For the sauce, mix butter and flour, then pour in boiling water and season with salt and pepper.
Add sliced hard-boiled eggs to the sauce and pour it around the fish.
Garnish the fish with lemon slices.
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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Bread + buttertop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Fish + breadtop 10% of all pairsSmell alikemoderateCooked together1,668 recipes
Shared aroma: 2-undecenal (sweet).
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Fish + buttertop 12% of all pairsSmell alikemoderateCooked together4,488 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and butter barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Fish
- Forms the main body of the dish and provides the flesh that cooks through during baking.
- Flour
- Dredging coats the skin, helping it brown and giving the sauce body when cooked with butter.
- Stale bread
- Soaked and pressed dry, it forms a moist, absorbent dressing that holds its shape inside the fish.
- Butter
- Adds fat and richness to the pan, the dressing, and the sauce, carrying flavour and aiding browning.
- Hard-boiled eggs
- Sliced into the sauce, they add texture and substance to the finished dish.
The step that matters
Adding hot water to the pan. Enough hot water must surround the fish to prevent the butter and drippings from scorching before the fish is cooked through, while the fish itself stays moist as it bakes.
Swap the onion
How well each one fits the dish's main ingredients (fish, flour, bread, pepper, butter, egg, sauce):
- Shallotfits better
- Capsicumfits better
- Asparagusfits better
- Onionthe original
Fit is the average pairing score against fish, flour, bread, pepper, butter, egg, sauce. 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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