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Dessert

Green Citron Preserve

A preserve made from citron, green ginger, lemons, sugar, and water, boiled and soaked.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Ginger and lemon 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 Citron Preserve

Ingredients

Directions

Prepare the citron

  1. Pare the citron and cut it into small or fancy pieces, removing the seeds.

Cook the preserve

  1. Combine the citron, green ginger, sliced lemons, sugar, and water in a large pot.

  2. Boil the mixture for 3 to 4 hours.

  3. Add the lemons when the citron is nearly ready to be taken up.

Make the syrup and soak

  1. Make a syrup by combining the ginger with the sugar.

  2. Soak the citron rind in cold water overnight.

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. Ginger + lemontop 5% of all pairs
    Smell alikestrong
    Cooked together5,154 recipes

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

  2. Ginger + sugartop 17% of all pairs
    Smell alikelow
    Cooked together14,054 recipes

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

  3. Lemon + sugartop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

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

Ginger and sugar 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

Citron
Forms the bulk of the preserve, its thick rind softening and turning tender as it cooks.
Sugar
Sweetens the preserve and, at high concentration, thickens the syrup and helps preserve the fruit.
Green ginger
Adds a sharp, warm aroma that flavours the sweet syrup.
Lemons
Adds acidity and bright flavour that balances the sweetness of the sugar.

The step that matters

Adding the lemons at the right time. Lemons added too early can break down and turn mushy, losing their bright flavour. Adding them when the citron is nearly done lets them keep their shape and fresh acidity.

Swap the lemon

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

  1. Lemonthe original
  2. Orangefits about as well
  3. Limefits less well
  4. Vanillafits less well

Fit is the average pairing score against ginger, 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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