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Boiled Fresh Cod, Egg Sauce

A boiled cod served with a sauce made from mashed hard‑boiled eggs, butter, lemon juice, and black pepper.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Lemon and pepper match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓

Boiled Fresh Cod, Egg Sauce

Ingredients

Directions

The book gives no cooking times; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.

Prepare and cook the fish

  1. Clean and scale the cod, then place it in a pot with water and salt.

  2. Bring to a boil, then reduce heat and simmer for 15‑20 minutes until cooked through.

Make the egg sauce and serve

  1. While the fish is cooking, prepare the egg sauce by mashing the hard‑boiled eggs in a bowl.

  2. Mix in the butter, lemon juice, and black pepper until smooth.

  3. Serve the boiled cod with the egg sauce drizzled on top.

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 + peppertop 3% of all pairs
    Smell alikestrong
    Cooked together27,047 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  2. Butter + lemontop 16% of all pairs
    Smell alikemoderate
    Cooked together41,227 recipes

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

  3. Egg + buttertop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 recipes

    Shared aroma: decanal (soap, orange peel).

  4. Egg + lemontop 19% of all pairs
    Smell alikelow
    Cooked together44,316 recipes

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

  5. Butter + peppertop 21% of all pairs
    Smell alikemoderate
    Cooked together85,593 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

Egg and lemon 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

Cod
Provides the main protein, which firms and turns opaque as it cooks through.
Hard-boiled eggs
Mashed into the sauce to give it body and a rich, creamy texture.
Butter
Adds fat and smoothness, giving the egg sauce a silky mouthfeel.
Lemon juice
Adds acidity that brightens the rich egg and butter sauce.

The step that matters

Simmer the cod gently after boiling. Once the water reaches a boil, lowering the heat to a simmer cooks the fish evenly. A hard, rolling boil can toughen and break up the delicate flakes of fish.

“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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