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Fennel Sauce for Fish

A butter-based sauce flavored with fennel, mint, and parsley, served immediately to preserve color.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Fennel and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 625 recipes. Both carry myristicin, which smells spice, warm. The science ↓

Fennel Sauce for Fish

Ingredients

Directions

Prepare the herbs

  1. Wash and boil the fennel, mint, and parsley until tender.

  2. Drain and chop the herbs finely.

Make and serve the butter

  1. Mix the chopped herbs into the melted butter.

  2. Serve the sauce immediately after mixing to prevent discoloration.

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. Fennel + parsleytop 1% of all pairs
    Smell alikestrong
    Cooked together625 recipes

    Shared aroma: myristicin (spice, warm).

  2. Mint + parsleytop 7% of all pairs
    Smell alikemoderate
    Cooked together1,198 recipes

    Shared aroma: 2,4-decadienal (seaweed).

  3. Fennel + minttop 7% of all pairs
    Smell alikemoderate
    Cooked together168 recipes

    Shared aroma: beta-phellandrene (minty, terpene).

  4. Parsley + buttertop 15% of all pairs
    Smell alikemoderate
    Cooked together28,563 recipes

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

  5. Mint + buttertop 26% of all pairs
    Smell alikelow
    Cooked together1,559 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

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

What each ingredient does

Fennel
Adds a sweet, aniseed-like aroma that flavours the butter.
Mint
Adds a cool, fresh aroma that lifts the rich butter.
Parsley
Adds a green, fresh aroma and a mild herbal flavour.
Butter
Carries the herb flavours and gives the sauce richness and a smooth texture.

The step that matters

Serve immediately after mixing. Chopped herbs darken when their cut surfaces oxidise and sit exposed to air. Serving right after mixing keeps the sauce looking fresh and green.

Swap the mint

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

  1. Tarragonfits better
  2. Thymefits better
  3. Dillfits better
  4. Mintthe original

Fit is the average pairing score against fennel, parsley, 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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