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Dessert

Sugar Taffy

A hard candy made by boiling sugar with water, citric acid, and citrus juice, then cooling into blocks.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Lemon and butter are a kitchen classic. They rank in the top 16% of all ingredient pairs, and cooks put them together in 41,227 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓

Sugar Taffy

Ingredients

Directions

Make the syrup

  1. Dissolve the sugar in water with citric acid.

  2. Boil the mixture and remove any scum.

  3. Test by dropping a bit in cold water; it should crack.

  4. Remove from heat and mix in the juice of the lemons or oranges.

  5. Boil again until thick.

Set and mark

  1. Pour into buttered pans in a thin layer.

  2. Mark into square blocks before it cools to ensure even breaking.

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 + buttertop 16% of all pairs
    Smell alikemoderate
    Cooked together41,227 recipes

    Shared aroma: 3-hexenal (apple, fruity).

  2. Sugar + buttertop 17% of all pairs
    Smell alikemoderate
    Cooked together98,233 recipes

    Shared aroma: guaiacol (smoky, sweet).

  3. Sugar + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 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
Forms the body of the taffy and, when cooked to a hard-crack stage, sets firm and brittle.
Citric acid
Adds sourness and helps prevent the sugar from recrystallizing into grainy crystals.
Lemon or orange juice
Adds acidity and flavour and further discourages sugar crystallization.

The step that matters

Test by dropping a bit in cold water. The syrup must reach the hard-crack stage so the taffy sets brittle rather than sticky. Stopping early leaves a soft, chewy result, while overcooking can scorch the sugar and give a bitter taste.

Swap the lemon

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

  1. Vanillafits better
  2. Figfits better
  3. Peachfits better
  4. Lemonthe original

Fit is the average pairing score against sugar, butter. 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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