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Dessert

Lemon Sponge Candy

A candied lemon confection made by boiling sugar, adding egg white, lemon essence, and pouring onto sugared paper.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Sugar and lemon are a kitchen classic. They rank in the top 18% of all ingredient pairs, and cooks put them together in 53,532 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓

Lemon Sponge Candy

Ingredients

Directions

  1. Boil 1 pint of clarified sugar in a copper pan over a clear fire until it reaches the ball or crack stage and turns yellow.

  2. In a bowl, mix ½ egg white with 2 teaspoons of fine sifted sugar and 20 drops of lemon essence.

  3. Combine this mixture with the sugar in the pan using a wooden spoon.

  4. Pour the mixture onto paper dusted with fine sifted sugar.

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

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

  2. Egg + lemontop 19% of all pairs
    Smell alikelow
    Cooked together44,316 recipes

    Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).

  3. Sugar + eggtop 21% of all pairs
    Smell alikemoderate
    Cooked together122,807 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

Clarified sugar
Forms the hard, brittle candy base when cooked to the ball or crack stage.
Egg white
Adds foam and lightness, giving the candy a sponge-like, airy texture.

The step that matters

Cooking the sugar to the ball or crack stage. Sugar syrup must reach the correct temperature range for the candy to set firm rather than sticky or soft. Going too far darkens and bitters it, while stopping early leaves it tacky.

Swap the lemon

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

  1. Vanillafits better
  2. Raisinfits about as well
  3. Lemonthe original
  4. Datesfits less well

Fit is the average pairing score against sugar, egg. 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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