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Dessert

Orange Marmalade

A preserved citrus spread made from bitter and sweet oranges, lemons, water, sugar, and brandy or whisky.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 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 ↓

Orange Marmalade

Ingredients

Directions

Prepare

  1. Cut the fruit into small pieces, removing the seeds.

  2. Place the fruit in a jar with 4 quarts of cold water and let it stand for 36 hours.

Cook

  1. Boil the mixture for 2 hours.

  2. Add 8 pounds of white sugar and continue boiling until it jellies.

  3. Just before removing from heat, stir in ⅓ cup of brandy or whisky to clarify the marmalade.

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. Orange + brandytop 15% of all pairs
    Smell alikelow
    Cooked together2,706 recipes

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

  3. Bitter orange + orangetop 17% of all pairs
    Smell alikelow
    Cooked together23 recipes

    Shared aroma: acetal (cream, earthy).

  4. Lemon + sugartop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

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

  5. Sugar + brandytop 19% of all pairs
    Smell alikelow
    Cooked together11,939 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

Bitter oranges
Provide the pectin and bitter flavour that give marmalade its set and character.
White sugar
Sweetens the marmalade and, with the boiling, helps it reach a firm, spreadable set.
Lemons
Add acidity and extra pectin, supporting a good set and brightening the flavour.
Brandy or whisky
Added near the end to clarify the marmalade and contribute aroma.

The step that matters

Boil until it jellies. Sugar must be added to fruit that has cooked long enough, then boiled until the pectin and sugar reach the setting point. Stopping early leaves a runny marmalade; boiling too long can darken and toughen the flavour.

Swap the bitter orange

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

  1. Vanillafits better
  2. Figfits better
  3. Apricotfits better
  4. Bitter orangethe original

Fit is the average pairing score against orange, lemon, sugar, brandy. 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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