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Lemon Sauce for Fish

A sauce made from lemon juice, butter, egg yolks, salt, and white pepper, served over fish.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Lemon and butter are a kitchen classic. They rank in the top 16% of all ingredient pairs, and cooks put them together in 41,227 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓

Lemon Sauce for Fish

Ingredients

Directions

  1. Place lemon juice and butter in a saucepan and heat, stirring constantly.

  2. Remove from heat and slowly add the well-beaten egg yolks, salt, and pepper.

  3. Beat until the mixture stiffens, then serve on 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 their aromas overlap, and how often cooks already put them together.

  1. Lemon + buttertop 16% of all pairs
    Smell alikemoderate
    Cooked together41,227 recipes

    Shared aroma: 3-hexenal (apple, fruity).

  2. Lemon + white peppertop 16% of all pairs
    Smell alikelow
    Cooked together1,658 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

  3. Butter + eggtop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 recipes

    Shared aroma: decanal (soap, orange peel).

  4. Lemon + eggtop 19% of all pairs
    Smell alikelow
    Cooked together44,316 recipes

    Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).

  5. White pepper + eggtop 21% of all pairs
    Smell alikelow
    Cooked together2,312 recipes

    Shared aroma: 2-methylbutyraldehyde (malty, chocolate).

Lemon and egg barely smell alike, yet cooks put them together in 44,316 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

Butter
Adds richness and a smooth, silky body to the sauce.
Egg yolks
Thicken the sauce as they set, giving it a creamy, stiffened texture.
Lemon juice
Adds acidity and bright flavor that cuts through the rich butter and yolks.

The step that matters

Adding the egg yolks off the heat. Egg yolks scramble if they meet direct heat too quickly. Removing the pan from the heat and adding the yolks slowly while stirring lets them thicken gently into a smooth sauce instead of curdling.

Swap the white pepper

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

  1. Parsleyfits better
  2. Tarragonfits better
  3. Nutmegfits better
  4. White pepperthe original

Fit is the average pairing score against lemon, butter, egg. 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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