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Dessert

Crab Apple Jelly

A jelly made from crab apples, sugar, lemon juice, and water.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Apple and lemon are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 7,551 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓

Crab Apple Jelly

Ingredients

Directions

Prepare the fruit

  1. Wash and wipe the crab apples, then quarter them without coring.

  2. Place the quartered apples in a kettle and cover with cold water.

Extract the juice

  1. Cook until soft, then strain the mixture twice through a jelly bag.

Make the jelly

  1. Measure the juice and boil for 25 minutes.

  2. Add 1 pound of sugar for every pint of juice, along with the juice of 1 lemon.

  3. Continue boiling until the mixture jells.

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. Apple + lemontop 14% of all pairs
    Smell alikemoderate
    Cooked together7,551 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  2. Crab + lemontop 16% of all pairs
    Smell alikemoderate
    Cooked together387 recipes

    Shared aroma: 1-octen-3-ol (mushroom, earthy).

  3. Apple + sugartop 18% of all pairs
    Smell alikelow
    Cooked together16,478 recipes

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

  4. Sugar + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

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

  5. Crab + sugartop 19% of all pairs
    Smell alikemoderate
    Cooked together407 recipes

    Shared aroma: hexanal (grass, green).

Apple and sugar barely smell alike, yet cooks put them together in 16,478 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

Crab apples
Provide natural pectin and acidity, which allow the juice to set into a jelly.
Sugar
Adds sweetness, helps the jelly set, and preserves its texture.
Lemon juice
Adds acidity that supports pectin setting and brightens the flavour.

The step that matters

Boil until the mixture jells. Jelly sets only when enough sugar, pectin and acid are concentrated by boiling. Stopping too early leaves a runny jelly, while boiling too long can darken the colour and make the set firm and sticky.

Swap the apple

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

  1. Limefits better
  2. Orangefits better
  3. Raisinfits better
  4. Applethe original

Fit is the average pairing score against crab, sugar, lemon. 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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