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Dessert

Lemon Sponge Candy

A candied confection made with clarified sugar, egg white, loaf sugar, and lemon essence.

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. Mix ½ egg white with 2 teaspoons of fine sifted loaf sugar and 20 drops of essence of lemon.

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

  4. Pour the mixture onto paper that has been sifted with loaf 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 candy base, setting firm and brittle as it cooks to the ball or crack stage.
Egg white
Whisked into the syrup, it aerates the mixture, giving the candy its light sponge texture.

The step that matters

Boil the sugar to the ball or crack stage. Sugar stops at a precise temperature range; undercooked syrup stays sticky and soft, while overcooked syrup turns bitter and brittle. Reaching the right stage sets the candy's texture.

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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