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Dessert

Marmalade of the Whole Orange

A sweet preserve made by cooking whole orange slices with sugar, water, and lemon juice until jelly-like.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Orange and lemon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 10,634 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓

Marmalade of the Whole Orange

Ingredients

Directions

Prepare the oranges

  1. Cut the oranges across and quarter them.

  2. Remove the seeds and core, then slice the oranges as thin as possible.

Cook the marmalade

  1. Mix the oranges with the sugar and water, and add the lemon juice.

  2. Boil the mixture slowly for one hour, ensuring the orange slices stay submerged in the syrup.

  3. The marmalade is ready when it looks full of jelly.

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. Orange + lemontop 1% of all pairs
    Smell alikestrong
    Cooked together10,634 recipes

    Shared aroma: 3-hexenal (apple, fruity).

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

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

  3. Orange + sugartop 20% of all pairs
    Smell alikelow
    Cooked together19,212 recipes

    Shared aroma: beta-damascenone (apple, rose).

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

Oranges
Provide the bulk of the marmalade and the peel, which adds bitterness and aroma.
Sugar
Sweetens the marmalade and helps it set into a jelly as it cooks.
Lemon juice
Adds acidity that brightens the flavour and supports gel formation.

The step that matters

Keeping the orange slices submerged while boiling. Slices exposed above the syrup can dry out, darken and scorch during the long simmer. Keeping them under the liquid helps them soften evenly and keeps the flavour clean.

“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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