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Tomato Ketchup

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 10 ingredients
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Why it works: Nutmeg and cinnamon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 11,917 recipes. Both carry estragole, which smells anise, licorice. The science ↓

Tomato Ketchup

Ingredients

Directions

  1. Pour boiling water over the tomatoes and peel them.

  2. Press the peeled tomatoes through a sieve.

  3. Boil the resulting pulp in a preserving kettle for two hours over low heat.

  4. Add salt and spices to taste: ginger, nutmeg, mace, clove, cinnamon, allspice, black pepper, and red pepper.

  5. Boil for a few minutes after adding the spices, then strain again through the sieve.

  6. Bottle the ketchup.

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. Nutmeg + cinnamontop 1% of all pairs
    Smell alikestrong
    Cooked together11,917 recipes

    Shared aroma: estragole (anise, licorice).

  2. Clove + cinnamontop 1% of all pairs
    Smell alikestrong
    Cooked together14,189 recipes

    Shared aroma: ethyl cinnamate (sweet, balsamic).

  3. Clove + allspicetop 1% of all pairs
    Smell alikestrong
    Cooked together7,874 recipes

    Shared aroma: estragole (anise, licorice).

  4. Cinnamon + allspicetop 1% of all pairs
    Smell alikestrong
    Cooked together5,536 recipes

    Shared aroma: estragole (anise, licorice).

  5. Nutmeg + allspicetop 1% of all pairs
    Smell alikestrong
    Cooked together3,331 recipes

    Shared aroma: estragole (anise, licorice).

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

Swap the tomato

How well each one fits the dish's main ingredients (ginger, nutmeg, mace, clove, cinnamon, allspice, pepper):

  1. Carrotfits better
  2. Parsnipfits better
  3. Capsicumfits better
  4. Tomatothe original

Fit is the average pairing score against ginger, nutmeg, mace, clove, cinnamon, allspice, pepper. Candidates are from the same food group and used in at least 100 recipes.

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