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Mock Terrapin Soup

A liver-based soup with egg balls, Spanish sauce, Madeira wine, and lemon slices.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 9 ingredients
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Why it works: Flour and egg are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 106,462 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Mock Terrapin Soup

Ingredients

Directions

Prepare the liver

  1. Boil the smallest lobe of calf's liver in salted water with herbs until cooked, then chop into quarter‑inch dice.

  2. Heat the stock and Spanish sauce together, then add the chopped liver and keep it warm.

Make the egg balls

  1. Rub the yolks of the hard‑boiled eggs through a sieve, mix with oil, a little salt and pepper, the raw egg yolk, and enough flour to form a stiff paste.

  2. Roll out the paste, cut into strips, and shape into small balls.

  3. Poach the egg balls in boiling water for five minutes, then add them to the soup.

Finish and serve

  1. Before serving, stir in the Madeira wine and pour the soup into a tureen. Serve with thin slices of lemon.

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. Flour + eggtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Sauce + flourtop 18% of all pairs
    Smell alikemoderate
    Cooked together8,078 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  3. Sauce + madeira winetop 19% of all pairs
    Smell alikelow
    Cooked together230 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  4. Flour + peppertop 19% of all pairs
    Smell alikemoderate
    Cooked together50,459 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Madeira wine + flourtop 22% of all pairs
    Smell alikelow
    Cooked together423 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

Flour and egg barely smell alike, yet cooks put them together in 106,462 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

Stock
Forms the liquid base that carries all the other flavours.
Spanish sauce
Adds body and a rich, savoury depth to the soup.
Flour
Stiffens the egg paste so it can be rolled and shaped into balls.
Hard boiled eggs
Their sieved yolks give the egg balls a soft, crumbly, rich texture.
Raw egg
Binds the egg paste so the balls hold their shape while poaching.
Madeira wine
Adds a sweet, fortified aroma and depth to the finished soup.

The step that matters

Forming and poaching the egg balls. The paste must be stiff enough to roll without sticking, yet the balls must be poached gently in boiling water for the set time. Too little flour leaves them fragile and they may break apart, while overworking or overcooking makes them tough and rubbery.

“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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