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Dessert

Apple Jelly

A preserve made by cooking apples with water and sugar until the juice sets into jelly.

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 ↓

Apple Jelly

Ingredients

Directions

Prepare the apples

  1. Pare, core, and slice the apples.

  2. Place them in a preserving pan and cover with water.

  3. Stir occasionally and simmer gently until the apples have fallen apart.

Strain the juice

  1. Pour the mixture into a jelly bag.

  2. Strain the juice without pressing the pulp.

  3. Measure the juice.

Make and set the jelly

  1. Add 1 pound of sugar for every pint of juice.

  2. Return the juice and sugar to the preserving pan.

  3. Optionally, add cloves or lemon rind.

  4. Boil gently for about 30 minutes, skimming as needed, until a small amount sets on a plate.

Jar

  1. Pour the hot jelly into jars.

  2. Cover once cooled.

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. Lemon + saffrontop 1% of all pairs
    Smell alikestrong
    Cooked together538 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

  3. Orange + saffrontop 3% of all pairs
    Smell alikemoderate
    Cooked together185 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

  4. Clove + saffrontop 5% of all pairs
    Smell alikestrong
    Cooked together455 recipes

    Shared aroma: estragole (anise, licorice).

  5. Orange + clovetop 6% of all pairs
    Smell alikemoderate
    Cooked together1,987 recipes

    Shared aroma: ethyl octanoate (fruity, wine).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Orange-pippins or rosy-cheeked apples
Provide the pectin and fruit flavour that set the jelly.
Sugar
Adds sweetness and, with boiling, helps the jelly thicken and set.
Water
Softens the apples so their juice can be drawn out.

The step that matters

Judging the set on a plate. Jelly sets only once enough sugar, acid and pectin are concentrated by boiling. Stopping too early leaves a runny result, while boiling too long can make it stiff. Testing a cold plate shows whether it has reached setting point.

Swap the clove

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

  1. Cinnamonfits better
  2. Corianderfits better
  3. Thymefits better
  4. Clovethe original

Fit is the average pairing score against orange, sugar, lemon, saffron. 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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