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Dessert

Treacle Candy

A British confection made from treacle, brown sugar, butter, vinegar, and soda, boiled until hard and then pulled.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 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 ↓

Treacle Candy

Ingredients

Directions

Make the candy

  1. Combine the treacle, brown sugar, butter, and vinegar in a large saucepan.

  2. Boil the mixture until a few drops harden immediately when dropped into cold water.

  3. Dissolve the carbonate of soda in a little hot water and stir it into the mixture.

  4. Pour the mixture into an oiled or buttered tin, turning the edges in as it cools.

Pull and cut

  1. Once it can be handled, pull the candy until it turns white, then draw it into sticks and cut into short lengths.

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

    Shared aroma: guaiacol (smoky, sweet).

  3. Butter + vinegartop 23% of all pairs
    Smell alikemoderate
    Cooked together13,513 recipes

    Shared aroma: isoamyl acetate (banana, pear).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Treacle
Provides the main flavour and dark colour, and keeps the candy chewy and sticky.
Brown sugar
Adds sweetness and helps the candy set firm once boiled.
Butter
Adds fat for a softer, smoother bite and a rich flavour.
Carbonate of soda
Reacts with the hot syrup to add gas bubbles, lightening the texture and making it pull to white.

The step that matters

Boil to the hard-crack test. Boiling until drops harden instantly in cold water sets the sugar concentration. Too little boiling leaves the candy soft and sticky, while overboiling makes it brittle and hard to pull.

“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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