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Pineapple Frappe

A chilled pineapple beverage made with sugar, lemon juice, pineapple, ice water, and ice-salt mixture.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Lemon and pineapple 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 ↓

Pineapple Frappe

Ingredients

Directions

Make the syrup

  1. Boil the sugar and water for 15 minutes.

Combine and cool

  1. Add the strained juice of the lemons and the pineapple.

  2. Cool.

  3. Strain, squeezing all juice from the pineapple.

  4. Add the ice water.

Freeze

  1. Freeze until mushy, using equal parts of ice and salt in the freezer.

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. Lemon + pineappletop 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

Sugar
Sweetens the juice and lowers its freezing point so the frappé stays soft and scoopable.
Lemons
Add acidity that balances the sweetness and brightens the pineapple flavour.
Pineapple
Provides the main fruit flavour and juice for the frappé.

The step that matters

Freeze until mushy. Freezing should stop before the mixture turns solid. Sugar and acid keep the mixture partly liquid, so it forms fine ice crystals with a slushy texture rather than a hard block.

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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