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Dessert

Orange Marmalade

A preserve made from oranges, lemons, water, and sugar.

From an old cookbook · modernised transcription
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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 ↓

Orange Marmalade

Ingredients

Directions

Prepare the fruit

  1. Peel the oranges and lemons, cutting the skin into shreds with scissors.

  2. Cut the fruit into small pieces, removing as much of the bitter white pith as possible.

  3. Measure the total fruit mixture.

Cook and rest

  1. Add 1½ pints of cold water for every pint of fruit.

  2. Boil the mixture for 30 minutes.

  3. Remove from heat and let it stand for 24 hours.

  4. Boil the mixture again.

Add sugar

  1. Add ½ pound of sugar for every pint of the mixture.

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. Lemon + sugartop 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).

Lemon and sugar 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
Peel and pulp supply the bitter flavour and the pectin that helps the marmalade set.
Lemons
Add acidity and extra pectin, which help the marmalade gel and balance the sweetness.
Sugar
Sweetens the marmalade and, at high concentration, helps it set and keep.

The step that matters

Removing the white pith. The white pith is very bitter and pectin-rich; removing as much as possible keeps the flavour pleasant, while leaving some pith adds pectin that aids setting.

“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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