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Preserved Green Tomatoes

A preserve made from green tomatoes, lemons, sugar, and optional ginger.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 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 ↓

Preserved Green Tomatoes

Ingredients

Directions

Prepare

  1. Slice the lemons without removing the skins and remove the seeds.

Cook

  1. In a pot, combine the sliced lemons, green tomatoes, and sugar.

  2. Boil until the mixture is transparent and the syrup thickens.

  3. Add ginger root if desired.

  4. Allow to cool before storing.

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. Lemon + sugartop 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, softening into tender pieces in the sugar syrup.
Sugar
Sweetens the preserve and, as it dissolves and boils, thickens the syrup and helps preserve the fruit.
Lemons
Add acidity and aroma, and their skins and pith contribute natural pectin to help the syrup set.

The step that matters

Boil until the mixture is transparent and the syrup thickens. Boiling must go long enough to dissolve the sugar and concentrate the syrup, which lets the fruit become clear and the syrup set. Stopping early leaves a thin, watery preserve that may spoil sooner.

Swap the ginger

The recipe marks ginger as optional. How well each one fits the dish's main ingredients (tomato, lemon, sugar):

  1. Corianderfits better
  2. Basilfits better
  3. Oreganofits better
  4. Gingerthe original

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