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Pine Jelly

A clear pineapple jelly made with clarified sugar, water, pineapple, lemon juice, and isinglass.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Pineapple and lemon are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 1,964 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓

Pine Jelly

Ingredients

Directions

Prepare the syrup

  1. Combine 1 pint clarified sugar and 1 pint cold water in a pot; heat until smooth.

  2. Peel the pineapple, cut into quarters, and trim each quarter into long pieces.

  3. Add pineapple to the boiling sugar mixture, skim, and boil for 10 minutes.

  4. Remove the round pineapple pieces and set aside.

  5. Boil the remaining pineapple pieces for 20 minutes.

Make the jelly

  1. Peel lemon rinds and squeeze juice through a fine sieve into a bowl.

  2. After boiling, pour the liquid through the sieve into the pot and add 2 ounces clarified isinglass.

Mold and set

  1. Pour a little jelly into a mold, then add small round pineapple pieces.

  2. Once set, layer more jelly and pineapple until the mold is full.

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. Pineapple + lemontop 12% of all pairs
    Smell alikemoderate
    Cooked together1,964 recipes

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

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

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

  3. Sugar + pineappletop 19% of all pairs
    Smell alikelow
    Cooked together4,841 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

Isinglass
Sets the clear liquid into a firm, tender jelly when cooled.
Clarified sugar
Provides sweetness and body to the syrup that carries the jelly's flavor.
Ripe pineapple
Supplies the main flavor and fruit pieces suspended in the jelly.
Lemons
Add acidity and brightness that balance the sweetness of the syrup.

The step that matters

Pouring the jelly into the mold in layers. Each layer must be partly set before the next is added, or the pineapple pieces will sink or the layers will blend. Isinglass gels as it cools, so timing controls the final structure.

Swap the pineapple

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

  1. Orangefits better
  2. Limefits better
  3. Vanillafits better
  4. Pineapplethe 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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