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Rhubarb Marmalade

A preserved fruit spread made from rhubarb, sugar, lemon rind, and lemon juice.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Rhubarb Marmalade

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 Marmalade

Ingredients

Directions

Prepare

  1. Peel and slice the rhubarb.

  2. In a preserving kettle, combine the rhubarb, sugar, lemon rind, and lemon juice.

Cook

  1. Stir often to prevent burning and remove any scum that rises.

  2. Boil until a small amount jellies when cooled on a saucer.

Jar and store

  1. Once partly cooled, transfer the marmalade to glass jars.

  2. When completely cool, place a round of paper dipped in brandy on top of each jar and seal airtight.

  3. Store the marmalade in a cool, dark place.

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.

Photo for illustrative purposes only · Contact us to use it

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 bulk and tart flavour that forms the marmalade.
Sugar
Sweetens the fruit and helps it set into a thick, jellied texture.
Lemon juice
Adds acidity that brightens the flavour and supports the set.
Lemon rind
Contributes aromatic citrus oils for fragrance and flavour.

The step that matters

Boil until a small amount jellies when cooled on a saucer. Sugar and fruit pectin set only at the right concentration. Undercooking leaves a runny marmalade, while overcooking makes it stiff and can darken and scorch the sugar. The saucer test checks the set before 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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