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Cod Roe and Cream

A dish of cooked cod roe mixed with lemon juice, cayenne pepper, cream, and egg, served on buttered toast.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 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 ↓

Cod Roe and Cream

Ingredients

Directions

Prepare the roe

  1. Remove the skin from the cooked cod roe and pound it in a mortar.

  2. Add the lemon juice, salt, and cayenne pepper.

Thicken and serve

  1. Boil the mixture with the cream and thicken it with a well-beaten egg.

  2. Serve the mixture on hot buttered toast.

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. Roe + eggtop 14% of all pairs
    Smell alikemoderate
    Cooked together243 recipes

    Shared aroma: (e)-2-octenal (fatty, green).

  3. Roe + creamtop 17% of all pairs
    Smell alikemoderate
    Cooked together79 recipes

    Shared aroma: acetic acid (sour, vinegar).

  4. Roe + lemontop 18% of all pairs
    Smell alikelow
    Cooked together251 recipes

    Shared aroma: 1-octen-3-ol (mushroom, earthy).

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

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

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

Cod roe
Provides the main body and rich, savoury flavour of the spread.
Egg
Thickens the cream mixture as it sets with gentle heat, giving it a smooth, spreadable texture.
Cream
Adds fat and moisture, making the mixture smooth and mellowing its sharpness.
Lemon juice
Adds acidity that brightens the rich roe and cuts through the fat.

The step that matters

Thickening the mixture with egg. Egg proteins set when heated, but if the mixture boils too hard after the egg is added, it can curdle and turn grainy. Adding the beaten egg gently and keeping the heat controlled keeps the texture smooth.

“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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