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Preserve

Green Tomato Preserves

A preserve made by boiling green tomatoes with sugar, lemon, and ginger until thick and translucent.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Lemon and ginger match in chemistry and in kitchens. They rank in the top 5% of all ingredient pairs, and cooks put them together in 5,154 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓

Green Tomato Preserves

Ingredients

Directions

Prepare the tomatoes

  1. Wash the green tomatoes but do not peel them.

  2. Boil the tomatoes gently in cold water until tender but not broken.

  3. Strain the cooking liquid and measure it.

Make the syrup

  1. Add the same weight of sugar as the tomatoes to the strained liquid.

  2. Add the lemon rind, lemon juice, and ginger root to the syrup.

  3. Boil the syrup until it thickens, then add the tomatoes.

  4. Simmer gently until the tomatoes are transparent and the syrup is rich and thick.

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 + gingertop 5% of all pairs
    Smell alikestrong
    Cooked together5,154 recipes

    Shared aroma: beta-phellandrene (minty, terpene).

  2. Tomato + gingertop 10% of all pairs
    Smell alikemoderate
    Cooked together1,887 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  3. Tomato + lemontop 11% of all pairs
    Smell alikemoderate
    Cooked together4,592 recipes

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

  4. Sugar + gingertop 17% of all pairs
    Smell alikelow
    Cooked together14,054 recipes

    Shared aroma: 1-penten-3-one (fish, pungent).

  5. Sugar + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

    Shared aroma: 2-nonenal (fatty, green).

Sugar and ginger barely smell alike, yet cooks put them together in 14,054 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

Green tomatoes
Provide the bulk of the preserve and, once simmered, the translucent fruit texture.
Sugar
Sweetens the preserve and, as it thickens the syrup, helps set it into a rich, thick texture.
Lemon juice
Adds acidity that brightens the sweetness and helps the preserve taste balanced.
Ginger root
Adds a warm, aromatic flavour to the syrup.

The step that matters

Simmer gently until the tomatoes are transparent. Boiling hard can break the tomatoes apart and make the syrup cloudy or scorched. Gentle simmering lets sugar slowly penetrate the fruit, so it turns clear and holds its shape while the syrup thickens.

Swap the tomato

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

  1. Arrowrootfits better
  2. Sweet potatofits better
  3. Broccolifits better
  4. Tomatothe original

Fit is the average pairing score against sugar, lemon, ginger. 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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