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Apples, Whole

Whole apples preserved in a sweet syrup with lemon.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 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 ↓

Apples, Whole

Ingredients

Directions

Make the syrup

  1. Make a syrup by boiling 1 pound of loaf sugar with enough water to cover the apples until clear, skimming as needed.

  2. Pare the apples and remove the cores before weighing them.

Cook the apples and lemon

  1. Boil the apples in water until soft, ensuring they do not break. Remove those that cook first onto a strainer.

  2. Squeeze the juice from 1 large lemon and boil it with the lemon peel in the same water used for the apples until the peel is tender.

  3. Add the syrup to the lemon mixture and boil for 10 minutes until it becomes a strong syrup.

Jar and seal

  1. Gently place the cooled apples in jars and pour the hot syrup over them.

  2. Seal the jars and do not open them for two weeks.

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. Apple + sugartop 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).

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

Pleasant sour apples
Their firm flesh and tartness hold their shape and balance the sweet syrup.
Loaf sugar
Forms the syrup that sweetens the apples and helps preserve them.
Lemon juice
Adds acidity that brightens the flavor and helps keep the syrup balanced.

The step that matters

Boil the apples until soft without breaking. Apples that cook too long lose their structure and turn to mush, while undercooked ones stay hard. Removing the first-softened pieces early lets the rest cook evenly and keeps the slices intact.

Swap the lemon

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

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

Fit is the average pairing score against apple, 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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