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To Heat Over Salt Fish

Fish cooked in a salt crust with cream, butter, flour, parsnips, and pepper.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Flour and parsnip match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 669 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

To Heat Over Salt Fish

Ingredients

Directions

  1. Break the fish into flakes and place it in a pan.

  2. Add the cream, butter rolled in flour, parsnips, and pepper.

  3. Simmer gently until very hot, but do not let it boil to avoid curdling the cream.

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. Flour + parsniptop 7% of all pairs
    Smell alikestrong
    Cooked together669 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Cream + buttertop 8% of all pairs
    Smell alikemoderate
    Cooked together41,516 recipes

    Shared aroma: delta-dodecalactone (sweet, creamy).

  3. Parsnip + peppertop 9% of all pairs
    Smell alikemoderate
    Cooked together1,109 recipes

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

  4. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Flour + peppertop 19% of all pairs
    Smell alikemoderate
    Cooked together50,459 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Butter and flour 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

Cream
Adds richness and a smooth, silky texture as it thickens gently with heat.
Butter
Adds fat and flavour, carrying richness through the sauce.
All-purpose flour
Thickens the cream into a smooth sauce when combined with the melted butter.
Parsnips
Add mild sweetness and body to the dish.

The step that matters

Simmer gently without boiling. Cream containing dairy proteins can curdle or separate when boiled hard. Gentle, moderate heat keeps the sauce smooth and cohesive while it warms through.

Swap the parsnip

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

  1. Spinachfits better
  2. Leekfits better
  3. Potatofits better
  4. Parsnipthe original

Fit is the average pairing score against cream, butter, flour, pepper. 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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