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Dessert

Lemon Candy

A hard candy made from sugar, water, vinegar, and lemon flavoring.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Sugar and vinegar are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 20,806 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓

Lemon Candy

Ingredients

Directions

Make the syrup

  1. In a saucepan, combine sugar and water.

  2. Boil slowly for 30 minutes, then clear the mixture with a little hot vinegar.

  3. Test the mixture by dropping it into cold water; it should become brittle.

Flavor and set

  1. Once ready, flavor the mixture strongly with lemon.

  2. Pour into buttered tins and, when cool, cut into squares.

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 + vinegartop 15% of all pairs
    Smell alikemoderate
    Cooked together20,806 recipes

    Shared aroma: beta-damascenone (apple, rose).

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

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

  3. Vinegar + lemontop 20% of all pairs
    Smell alikemoderate
    Cooked together7,334 recipes

    Shared aroma: acetic acid (sour, vinegar).

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
Forms the candy mass, provides sweetness, and hardens as it cools.
Vinegar
Its acidity helps keep the cooked sugar clear and prevents grainy crystals.
Lemon flavoring
Supplies the strong lemon aroma that defines the candy.

The step that matters

Testing the mixture in cold water. The candy's texture depends on how far the sugar has cooked. Stopping too early leaves it sticky, while cooking too long makes it hard and brittle. The cold-water test shows when the sugar has reached the right stage.

Swap the lemon

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

  1. Vanillafits better
  2. Strawberryfits better
  3. Pineapplefits better
  4. Lemonthe original

Fit is the average pairing score against sugar, vinegar. 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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