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Dessert

Pbach Jam, or Harhalade

A jam made from peaches, sugar, lemon juice, and optional blanched peach kernels.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Peach and lemon work together. They rank in the top 12% of all ingredient pairs, and cooks put them together in 947 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓

Pbach Jam, or Harhalade

Ingredients

Directions

Prepare

  1. Pare, stone, and weigh the peaches.

Cook the jam

  1. Boil the peaches quickly for 45 minutes, stirring often.

  2. Remove the peaches from heat.

  3. Mix in 2½ lbs of powdered sugar for each 4 lbs of peaches.

  4. Skim off any scum.

  5. Boil briskly for 5 minutes.

  6. Add the strained juice of 1-2 small lemons.

  7. Boil for an additional 3 minutes.

  8. Two minutes after adding the sugar, add the blanched peach kernels if desired.

Jar

  1. Pour the marmalade into 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. Peach + lemontop 12% of all pairs
    Smell alikemoderate
    Cooked together947 recipes

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

  2. Peach + sugartop 17% of all pairs
    Smell alikelow
    Cooked together2,308 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 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

Peaches
Provide the fruit body, flavor, and natural pectin that help the jam thicken as it cooks.
Sugar
Adds sweetness, binds water so the jam sets, and helps preserve the fruit.
Lemon juice
Adds acidity that helps pectin set and brightens the flavor of the peaches.

The step that matters

Boil briskly after adding the sugar. Sugar and pectin only set into a gel when the mixture reaches a hard boil and stays there long enough. Boiling too gently leaves the jam runny, while boiling too long can darken and dull its flavor.

Swap the peach

The recipe marks peach as optional. How well each one fits the dish's main ingredients (sugar, lemon):

  1. Orangefits better
  2. Limefits better
  3. Vanillafits better
  4. Peachthe original

Fit is the average pairing score against sugar, lemon. 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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