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Dessert

Orange Marmalade

A preserve made from bitter and sweet oranges, lemon juice, water, sugar, and optional brandy.

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. Thinly slice the bitter and sweet oranges.

  2. Cover the sliced oranges with 22 pints of cold water and let sit for 36 hours.

Cook

  1. Boil the mixture quickly for 2 hours.

  2. Add 22 pounds of white sugar and boil steadily for 1 hour.

  3. If desired, stir in ⅓ cup of brandy just before removing from heat.

Pot and store

  1. Pour into pots, let cool, and cover.

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 characteristic bitter peel and pectin that give marmalade its flavor and set.
Sweet oranges
Add mild sweetness and body to the citrus flavor.
White sugar
Sweetens the marmalade and helps it thicken and set as it cooks.
Lemon juice
Adds acidity that brightens flavor and helps pectin set.

The step that matters

Boil steadily after adding the sugar. Sugar must dissolve fully and the mixture must reach a proper boil so the pectin from the peel can gel. Too little boiling leaves the marmalade runny, while overcooking can darken it and make it bitter.

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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