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Fresh Mackerel

A boiled mackerel served with a parsley butter sauce and stewed gooseberries.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 ingredients
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Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Fresh Mackerel

Ingredients

Directions

Prepare the fish

  1. Roll the cleaned mackerel in a clean cloth.

  2. Submerge the mackerel in cold water.

Cook and make the sauce

  1. Bring the water to a boil and cook the mackerel for 5 minutes.

  2. For the parsley sauce, mix the flour with cold milk until smooth.

  3. Add the butter and heat until melted.

Serve

  1. Garnish with green parsley and serve with stewed gooseberries.

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. Milk + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

  2. Flour + buttertop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Flour + parsleytop 12% of all pairs
    Smell alikemoderate
    Cooked together16,675 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Flour + milktop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Butter + parsleytop 15% of all pairs
    Smell alikemoderate
    Cooked together28,563 recipes

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

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

Mackerel
Forms the main protein, cooked gently in simmering water until it turns opaque and flaky.
Flour
Thickens the milk into a smooth sauce when it is combined with the liquid.
Butter
Adds richness and a silky mouthfeel to the parsley sauce.
Milk
Forms the liquid base of the sauce, giving it body and a mild, creamy flavour.

The step that matters

Mix the flour with cold milk until smooth. Starch granules clump if hot liquid meets dry flour directly. Mixing them into cold milk first disperses the starch, so the sauce thickens evenly when heated.

Swap the parsley

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

  1. Cinnamonfits better
  2. Nutmegfits better
  3. Jalapenofits better
  4. Parsleythe original

Fit is the average pairing score against flour, milk, butter. 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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