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Rhubarb to Preserve

A preserved rhubarb made by simmering with sugar and lemon, then jarred with syrup and sealed with brandy-soaked paper.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Rhubarb and lemon match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 546 recipes. Both carry acetic acid, which smells sour, vinegar. The science ↓

Rhubarb to Preserve

Ingredients

Directions

Prepare and cook

  1. Peel and cut the rhubarb into 2-inch pieces.

  2. Combine rhubarb, sugar, lemon rind, and lemon juice in a preserving kettle.

  3. Simmer gently until the rhubarb is soft.

Jar and seal

  1. Carefully remove the rhubarb with a silver spoon and place it into jars.

  2. Boil the syrup for 1 hour to ensure it keeps well.

  3. Pour the syrup over the fruit in the jars.

  4. When cold, cover with a paper soaked in brandy and tie down with a bladder to exclude air.

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. Rhubarb + lemontop 7% of all pairs
    Smell alikestrong
    Cooked together546 recipes

    Shared aroma: acetic acid (sour, vinegar).

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

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

  3. Rhubarb + sugartop 18% of all pairs
    Smell alikemoderate
    Cooked together1,852 recipes

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

Sugar and lemon barely smell alike, yet cooks put them together in 53,532 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

Rhubarb
Provides the fruit body and tart flavour that the preserve is built around.
White sugar
Sweetens the fruit and, at high concentration, helps preserve it by binding water.
Lemon juice
Adds acidity that brightens the flavour and balances the sugar.
Lemon rind
Contributes aromatic citrus oils to the syrup.

The step that matters

Simmer gently until the rhubarb is soft. Vigorous boiling breaks the rhubarb pieces down into mush, while gentle simmering softens them and keeps them whole for jarring.

Swap the rhubarb

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

  1. Cinnamonfits better
  2. Gingerfits better
  3. Marjoramfits better
  4. Rhubarbthe original

Fit is the average pairing score against sugar, lemon. 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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