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Halibut with Caper Sauce

Halibut fillet boiled and served with caper sauce, small new potatoes, and parsley garnish.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Potato and parsley are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 2,855 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓

Halibut with Caper Sauce

Ingredients

Directions

Prepare

  1. Tie the halibut in a napkin and place it on a plate.

  2. Boil water and add vinegar and salt for each quart.

Poach and serve

  1. Submerge the halibut in boiling water and cook for 20 minutes.

  2. Remove the halibut carefully to prevent breaking.

  3. Pour the caper sauce over the halibut.

  4. Arrange small new potatoes around the halibut and garnish with parsley sprigs.

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. Potato + parsleytop 5% of all pairs
    Smell alikemoderate
    Cooked together2,855 recipes

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

  2. Vinegar + parsleytop 16% of all pairs
    Smell alikemoderate
    Cooked together6,477 recipes

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

  3. Vinegar + potatotop 20% of all pairs
    Smell alikemoderate
    Cooked together1,608 recipes

    Shared aroma: beta-damascenone (apple, rose).

  4. Sauce + parsleytop 23% of all pairs
    Smell alikelow
    Cooked together6,693 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  5. Sauce + potatotop 25% of all pairs
    Smell alikelow
    Cooked together1,073 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

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

What each ingredient does

Halibut
Forms the main body of the dish, cooking to a moist, flaky texture.
Caper sauce
Adds a tangy, acidic flavour that contrasts with the rich, mild fish.
Small new potatoes
Provide a starchy, mild side that soaks up the sauce and balances the fish.

The step that matters

Remove the halibut carefully to prevent breaking. Halibut is a delicate fish whose flakes separate easily once cooked. Gentle handling, using the napkin as support, keeps the fillet in one piece for serving.

Swap the potato

How well each one fits the dish's main ingredients (vinegar, sauce, parsley):

  1. Shallotfits better
  2. Mustardfits better
  3. Horseradishfits better
  4. Potatothe original

Fit is the average pairing score against vinegar, sauce, parsley. 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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