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Savoury Cod

From an old cookbook · modernised transcription
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Why it works: Parsley and butter are a kitchen classic. They rank in the top 8% of all ingredient pairs, and 28,543 recipes mention both. Both carry trans-2-hexenal, which smells green, leafy. The science ↓

The recipe

Ingredients

Contains: egg, milk, wheat, fish (auto-detected from the ingredients and method; we can miss things, so check labels)

Also mentioned in the method: flour

Directions

  1. Wash and dry the fish, then cut it into neat pieces.

  2. Place the fish in a saucepan with hot water, salt, and peppercorns, and cook gently for 10 to 15 minutes until tender.

  3. Remove the fish and keep it warm.

  4. In another saucepan, melt the butter, then remove from heat and stir in flour until smooth.

  5. Gradually add the fish water, removing the peppercorns, and boil for 3 minutes while stirring.

  6. Let the sauce cool slightly, then beat the egg and add it along with the parsley, pouring it over the fish.

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 aroma chemistry they share, and how many recipes mention both.

  1. Parsley + buttertop 8% of all pairs
    Aroma overlapmoderate
    Mentioned together28,543 recipes

    Shared aroma: trans-2-hexenal (green, leafy).

  2. Butter + eggtop 8% of all pairs
    Aroma overlapstrong
    Mentioned together118,511 recipes

    Shared aroma: nonanal (fat, citrus).

  3. Parsley + eggtop 11% of all pairs
    Aroma overlapmoderate
    Mentioned together18,323 recipes

    Shared aroma: 1-hexanol (resin, flower).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

Flavor stand-ins for the parsley

How well each one fits the dish's main ingredients (butter, egg):

  1. Nutmegabout as good a flavor fit
  2. Parsleythe original

Fit is the average pairing score against butter, egg. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).

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