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To Dress a Cod’s Head and Shoulders, Scotch Fashion

A cod head and shoulders prepared with stock, vinegar, egg yolks, breadcrumbs, lemon, butter, and a sauce of oysters, Madeira, and lobster.

From an old cookbook · modernised transcription
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Why it works: Carrot and turnip are a kitchen classic. They rank in the top 2% of all ingredient pairs, and 8,001 recipes mention both. Both carry coumarin, which smells sweet, hay. The science ↓

The recipe

Ingredients

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

Directions

Prepare the fish

  1. Prepare stock with beef or veal, onion, carrot, and turnip.

  2. Rub cod with salt overnight, removing scales but do not wash.

  3. Wash cod clean, then pour boiling water over it to remove slime without breaking the skin.

  4. Place cod in a pot of boiling water with salt and vinegar, ensuring it is fully submerged.

  5. Boil for 30 to 40 minutes, then drain and place on a deep dish.

Glaze and brown the fish

  1. Glaze cod with egg yolks, sprinkle with bread crumbs, lemon peel, pepper, and salt.

  2. Dot with butter and place before a clear fire, adding more crumbs, lemon peel, and parsley while basting with butter.

Make the sauce and serve

  1. Thicken stock with butter kneaded in flour, strain, and add oysters, oyster liquor, Madeira or sherry, lemon juice, and lobster meat.

  2. Boil sauce for 5 minutes, skim, and pour half over the crisping 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. Carrot + turniptop 2% of all pairs
    Aroma overlapmoderate
    Mentioned together8,001 recipes

    Shared aroma: coumarin (sweet, hay).

  2. Beef + oniontop 3% of all pairs
    Aroma overlapmoderate
    Mentioned together17,091 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  3. Onion + carrottop 4% of all pairs
    Aroma overlapstrong
    Mentioned together21,599 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  4. Onion + turniptop 4% of all pairs
    Aroma overlapmoderate
    Mentioned together7,584 recipes

    Shared aroma: coumarin (sweet, hay).

  5. Beef + carrottop 5% of all pairs
    Aroma overlapstrong
    Mentioned together6,604 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

Eggs
Egg yolks form a glaze that sets and helps the crumb coating brown on the fish.
Butter
Melts over the fish and enriches the crumbs, aiding browning, and thickens the sauce with flour.
Oysters
Add briny, savoury flavour and a soft texture to the sauce.
Madeira or sherry
Adds sweetness and depth of flavour to the sauce.
Lemon juice
Adds acidity that brightens the rich sauce.
Lobster meat
Adds sweet, rich flavour and tender texture to the sauce.

The step that matters

Boiling the cod without breaking the skin. Boiling vigorously or too long can split the delicate skin and cause the fish to fall apart. Keeping the water at a gentle simmer and timing the boil keeps the fish whole and moist.

Flavor stand-ins for the lemon

How well each one fits the dish's main ingredients (beef, onion, carrot, turnip, vinegar, egg, bread):

  1. Appleabout as good a flavor fit
  2. Grapeabout as good a flavor fit
  3. Pumpkinabout as good a flavor fit
  4. Lemonthe original

Fit is the average pairing score against beef, onion, carrot, turnip, vinegar, egg, bread. 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).

“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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