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Scotch Marmalade

A marmalade made from bitter orange rind, pulp, and sugar, boiled until jellied.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 3 ingredients
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Why it works: Bitter orange and orange work together. They rank in the top 17% of all ingredient pairs, and cooks put them together in 23 recipes. Both carry acetal, which smells cream, earthy. The science ↓

Scotch Marmalade

Ingredients

Directions

Prepare the fruit

  1. Cut the rind of the oranges into quarters and peel it off.

  2. Remove some of the spongy white skin if a thinner marmalade is desired.

  3. Cut the rind into thin chips about half an inch long.

  4. Divide the pulp into small bits, removing the seeds.

Soak overnight

  1. Soak the seeds in part of the water for the marmalade.

  2. Combine the chips and pulp in a deep dish and pour boiling water over them.

  3. Let the mixture sit for 12 to 14 hours.

Cook and set

  1. Transfer the mixture to a preserving pan and boil until the chips are tender.

  2. Gradually add the pounded sugar and continue boiling until the marmalade jellies.

  3. Strain the water from the soaked seeds through a sieve, working the seeds with a spoon to extract a clear jelly.

  4. Add the jelly to the fruit mixture when it is first placed on the fire.

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

    Shared aroma: acetal (cream, earthy).

  2. Sugar + orangetop 20% of all pairs
    Smell alikelow
    Cooked together19,212 recipes

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

  3. Bitter orange + sugartop 41% of all pairs
    Smell alikelow
    Cooked together14 recipes

Sugar and orange barely smell alike, yet cooks put them together in 19,212 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
Rind and pulp supply the bitter flavour, and the seeds supply pectin for setting.
Sugar
Sweetens the marmalade and helps it set into a firm jelly as it boils.

The step that matters

Boil until the marmalade jellies. Sugar, pectin and acid concentrate and set together at the right point. Stopping too early leaves the marmalade runny, while boiling too long can make it stiff and dull.

Swap the bitter orange

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

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

Fit is the average pairing score against sugar, orange. 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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