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Sauce for Baked Fish

A buttery sauce made with flour, water, fish stock, onion, parsley, egg, lemon juice, and sugar, served over baked fish.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 12 ingredients
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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 ↓

Sauce for Baked Fish

Ingredients

Directions

The book gives no cooking times; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.

Make the sauce

  1. In a saucepan, melt the butter over medium heat.

  2. Stir in the flour and cook for 1 minute.

  3. Gradually add the cold water, stirring until smooth.

  4. Add the browned stock and more water if necessary to reach desired consistency.

Finish and serve

  1. Just before serving, stir in the chopped onion, parsley, hard boiled egg, lemon juice, and sugar.

  2. Place the baked fish on a platter and pour the sauce over it.

Recipe from a historical cookbook (Internet Archive).

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.

  1. Parsley + lemontop 1% of all pairs
    Smell alikestrong
    Cooked together14,037 recipes

    Shared aroma: beta-phellandrene (minty, terpene).

  2. Pepper + parsleytop 2% of all pairs
    Smell alikestrong
    Cooked together34,122 recipes

    Shared aroma: 4'-methylacetophenone (bitter almond).

  3. Pepper + lemontop 3% of all pairs
    Smell alikestrong
    Cooked together27,047 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  4. Onion + parsleytop 9% of all pairs
    Smell alikemoderate
    Cooked together25,843 recipes

    Shared aroma: 2,4-decadienal (seaweed).

  5. Pepper + oniontop 11% of all pairs
    Smell alikemoderate
    Cooked 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

Butter
Enriches the sauce with fat and adds a rich, rounded flavor.
Flour
Thickens the sauce when cooked with butter, forming a smooth base.
Browned stock from baked fish
Carries the savory flavor of the fish and browned pan drippings into the sauce.
Hard boiled egg
Adds body and a mild, creamy richness to the finished sauce.

The step that matters

Adding the cold water to the flour and butter. Gradually whisking cold liquid into a hot butter and flour roux keeps starch granules dispersed, so the sauce stays smooth instead of lumpy.

Swap the onion

How well each one fits the dish's main ingredients (butter, flour, pepper, fish, parsley, egg, lemon):

  1. Shallotfits better
  2. Chivefits better
  3. Leekfits better
  4. Onionthe original

Fit is the average pairing score against butter, flour, pepper, fish, parsley, egg, lemon. 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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