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To Preserve Apples

A method for preserving apples in syrup to make a jelly-like preserve.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 2 ingredients
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Why it works: Lemon and apple 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 ↓

To Preserve Apples

Ingredients

Directions

Prepare

  1. Weigh equal quantities of Newtown pippins and sugar.

  2. Slice one lemon for every pound of apples.

Make the preserves

  1. Make a syrup with the sugar and water.

  2. Add the apples to the syrup and boil until tender.

  3. Place the apples in jars.

  4. Boil the syrup until it reaches a jelly-like consistency.

  5. Pour the syrup over the apples in the jars.

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. Lemon + appletop 14% of all pairs
    Smell alikemoderate
    Cooked together7,551 recipes

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

  2. Sugar + appletop 18% of all pairs
    Smell alikelow
    Cooked together16,478 recipes

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

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

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

Sugar and apple 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

Newtown pippins
Apples provide the fruit body and pectin-rich flesh that softens into the preserve.
Sugar
Sugar makes the syrup and preserves the fruit while thickening it as it boils down.
Lemon
Lemon adds acidity that brightens the flavour and helps the preserve set.

The step that matters

Boil the syrup to a jelly-like consistency. Boiling drives off water and concentrates the sugar, so the syrup thickens and sets as it cools. Stopping too early leaves a runny preserve that may spoil, while boiling too long makes it hard and sticky.

Swap the lemon

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

  1. Pearfits better
  2. Vanillafits better
  3. Apricotfits better
  4. Lemonthe original

Fit is the average pairing score against sugar, apple. 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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