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Apples in Jelly

Apples cooked in a sugar syrup that sets into jelly.

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 in Jelly

Ingredients

Directions

Make the syrup

  1. Boil sugar and water together until it spins a thread.

Cook the apples

  1. Quarter the unpeeled apples and drop them into the hot syrup.

  2. If using lemon rind, cook it with the apples and remove the bitter inner part.

  3. Cook the apples until they are clear.

  4. Transfer the apples to a glass dish.

Finish and set

  1. Boil the syrup until it reaches a jelly consistency and flavor with lemon juice.

  2. When the syrup is partly cool, pour it over the apples and let it stand in a cool place.

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. 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

Sugar
Dissolves into the water to form the syrup and, when boiled down, sets into a jelly.
Rich, red tart apples
Provide the fruit body and tart flavor that the sweet syrup balances.
Lemon juice
Adds acidity that brightens the sweetness and the apple flavor.

The step that matters

Boil the syrup to jelly consistency. Sugar syrup sets as it cools only when enough water has evaporated and the sugar concentration is high enough. Undercooked syrup stays runny, while overcooking can make it stiff or grainy.

Swap the lemon

The recipe marks lemon as optional. 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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