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Vegetable Marrow Preserve

A preserve made by boiling vegetable marrow with sugar and lemon.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 3 ingredients
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Why it works: Sugar and lemon are a kitchen classic. They rank in the top 18% of all ingredient pairs, and cooks put them together in 53,532 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓

Vegetable Marrow Preserve

Ingredients

Directions

Prepare

  1. Peel the marrow, remove the seeds, and cut it into strips like marmalade.

  2. Combine the marrow strips with 1 pound of loaf sugar.

  3. Let the mixture sit overnight to draw out the juice.

Cook

  1. Add the grated rind and juice of 1 large lemon to the mixture.

  2. Boil the mixture until clear, which will take about 1 hour.

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

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

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

Vegetable marrow
Forms the bulk of the preserve, becoming tender and translucent as it cooks in syrup.
Loaf sugar
Draws out moisture from the marrow and, once dissolved, thickens and preserves the mixture through sweetness.
Lemon
Adds acidity and aroma from the rind, and its juice brightens the sweet flavour.

The step that matters

Boiling until clear. Boiling must continue until the marrow is fully translucent and the syrup has reduced and thickened. Stopping early leaves a watery preserve, while overcooking can darken the sugar and make it sticky or caramelised.

“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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