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Dessert

Marmalade Jelly

A preserved orange marmalade made with Seville oranges, water, sugar, and optional lemons.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 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 ↓

Marmalade Jelly

Ingredients

Directions

Prepare

  1. Cut the oranges into quarters, removing all seeds.

  2. Separate the rind and steep it in water for 24 hours to reduce bitterness.

Cook

  1. Boil the peel with the oranges until tender.

  2. Strain the mixture through a jelly bag.

  3. For every pint of liquid, add 1 lb of loaf sugar.

  4. Boil for at least 1 hour.

  5. Optionally, add 1-2 cut lemons with the oranges for extra flavor.

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

Seville oranges
Provide pectin and acidity for setting, plus the bitter aromatic flavor of the marmalade.
Loaf sugar
Sweetens and, with pectin and acid, helps the mixture set into a firm jelly.
Lemons
Add acidity and extra pectin, supporting a good set and brightening the flavor.

The step that matters

Boil for at least 1 hour after adding the sugar. Sugar, pectin and acid must be boiled together long enough to reach the gel point. Too little boiling leaves the jelly runny, while the sugar and fruit need to cook evenly to avoid scorching.

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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