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Dessert

Barcelona Taffy

A chewy candy made from brown sugar, glucose, crystal sugar, water, and chopped Barcelona nuts, flavored with lemon.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 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 ↓

Barcelona Taffy

Ingredients

Directions

The book gives no oven temperature. The 300°F (150°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare

  1. Chop the Barcelona nuts finely.

Make the taffy

  1. In a large pot, combine the brown sugar, glucose, and water.

  2. Boil the mixture until it reaches 300°F (150°C).

  3. Remove the pot from the heat and carefully stir in the chopped nuts.

  4. Once thoroughly mixed, add a few drops of lemon flavoring.

  5. Pour the mixture onto a frame or pouring plate and mark into bars.

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. Nuts + lemontop 20% of all pairs
    Smell alikemoderate
    Cooked together470 recipes

    Shared aroma: decanal (soap, orange peel).

  3. Sugar + nutstop 25% of all pairs
    Smell alikelow
    Cooked together2,228 recipes

    Shared aroma: 1-penten-3-one (fish, pungent).

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

Brown sugar
Provides the sweetness and the caramel flavor of the taffy.
Glucose
Limits crystallization so the taffy stays smooth and chewy rather than grainy.
Barcelona nuts
Add crunch and nutty flavor throughout the taffy.

The step that matters

Boiling to 300°F (150°C). Sugar syrup's final texture depends on how much water boils off. Stopping short of 300°F leaves the taffy soft and sticky, while overcooking makes it hard and brittle.

Swap the nuts

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

  1. Chickpeafits better
  2. Pistachiofits better
  3. Milletfits better
  4. Nutsthe 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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