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Another Way to Make Orange Marmalade

A preserved orange peel and pulp mixture sweetened with sugar, optionally flavored with lemon juice.

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 ↓

Another Way to Make Orange Marmalade

Ingredients

Directions

Prepare

  1. Pare the oranges and cut the peel into thin chips.

  2. Soak the peel in cold water.

  3. Remove the pulp from the seeds and inside skin.

  4. Sprinkle the pulp with pounded sugar.

Soak and boil the peel

  1. The next day, drain the chips and place them in a linen bag.

  2. Boil the bag in plenty of cold water for 3 hours.

  3. Drain the chips again.

Finish the marmalade

  1. Boil the chips with the pulp for 10 minutes, or until it jellies in the clarified sugar.

  2. For minced marmalade, boil the skins.

  3. Finely mince the boiled skins with a knife.

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
Peel and pulp supply pectin, which helps the marmalade set, and the peel gives its bitter flavor.
Sugar
Sweetens the marmalade and, at high concentration, helps it set into a jelly.
Lemons
Juice adds acidity and extra pectin, which supports setting and brightens the flavor.

The step that matters

Boil the chips with the pulp until it jellies. Setting depends on pectin, sugar concentration and acid reaching the right balance. Stopping too early leaves a runny marmalade, while boiling too long can darken and stiffen it.

Swap the lemon

The recipe marks lemon as optional. How well each one fits the dish's main ingredients (orange, sugar):

  1. Vanillafits better
  2. Lemonthe original
  3. Figfits less well
  4. Pineapplefits less well

Fit is the average pairing score against orange, sugar. 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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