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Dessert

Pear Jelly

A sweet preserve made by boiling pears with water, straining, and cooking the juice with sugar and lemon juice.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Pear and lemon work together. They rank in the top 13% of all ingredient pairs, and cooks put them together in 942 recipes. Both carry alpha-pinene, which smells pine, turpentine. The science ↓

Pear Jelly

Ingredients

Directions

Prepare the pears

  1. Cut the pears into quarters without peeling or coring them.

  2. Place the fruit in a preserving pan with 1 pint of water.

  3. Boil on low heat until the pears become a pulp.

Extract the juice

  1. Strain through a flannel or jelly bag and let drain overnight.

  2. Squeeze out any remaining juice the next day.

Make and set the jelly

  1. For each pint of juice, add ¾ pound of loaf sugar and a little lemon juice.

  2. Boil on high heat for about 30 minutes, stirring well.

  3. Test by placing a small amount on a cold plate; if it jellies, it is done.

  4. Pour into jars and cover once cold.

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. Pear + lemontop 13% of all pairs
    Smell alikemoderate
    Cooked together942 recipes

    Shared aroma: alpha-pinene (pine, turpentine).

  2. Pear + sugartop 17% of all pairs
    Smell alikelow
    Cooked together2,079 recipes

    Shared aroma: 1-penten-3-one (fish, pungent).

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

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

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

Pears
Provide the fruit body and natural pectin that help the jelly set.
Loaf sugar
Sweetens the jelly and, with boiling, helps it thicken and set.
Lemon juice
Adds acidity that supports pectin gelling and brightens the flavour.

The step that matters

Testing for set. Jelly sets as it cools, so a cold-plate test shows whether the pectin and sugar have reached gelling strength. Stopping too early leaves a runny result, while boiling too long can make it stiff and dull.

Swap the lemon

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

  1. Vanillafits better
  2. Applefits better
  3. Plumfits better
  4. Lemonthe original

Fit is the average pairing score against pear, 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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