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Crab Apple

A preserve made by boiling crab apples with water and sugar to form a syrup, then adding the fruit to create a jelly.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 3 ingredients
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Why it works: Apple and sugar are a kitchen classic. They rank in the top 18% of all ingredient pairs, and cooks put them together in 16,478 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓

Crab Apple

Ingredients

Directions

Prepare the fruit

  1. Pare the crab apples and weigh them.

  2. In a skillet, combine the parings, a few quartered crab apples, and water; boil for 30 minutes.

  3. Strain the juice through a coarse cloth and add the sugar to make the syrup.

Make the preserve

  1. Add the crab apples to the syrup and boil until they turn a pretty red.

  2. Remove the fruit and let the syrup cool until it becomes a thin jelly.

  3. Once both syrup and fruit are cold, place them in jars and cover tightly.

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 + sugartop 18% of all pairs
    Smell alikelow
    Cooked together16,478 recipes

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

  2. Crab + sugartop 19% of all pairs
    Smell alikemoderate
    Cooked together407 recipes

    Shared aroma: hexanal (grass, green).

  3. Crab + appletop 22% of all pairs
    Smell alikelow
    Cooked together343 recipes

    Shared aroma: 1-octen-3-ol (mushroom, earthy).

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

Crab apples
Provide the fruit body and natural pectin that help the syrup set into a jelly.
Sugar
Sweetens the preserve and, with the cooked juice, thickens the syrup as it cools.
Water
Extracts flavor and pectin from the parings and fruit during the initial boil.

The step that matters

Letting the syrup cool to a thin jelly. Pectin and sugar set as the syrup cools, so removing the fruit at the right moment and allowing enough cooling lets it gel rather than stay runny or over-thicken.

Swap the apple

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

  1. Raisinfits better
  2. Lemonfits better
  3. Vanillafits better
  4. Applethe original

Fit is the average pairing score against crab, 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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