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Dessert

To Prepare Gum Paste

A confectionery paste made from gum, sugar, starch, lemon juice, and blue food coloring.

From an old cookbook · modernised transcription
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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 ↓

To Prepare Gum Paste

Ingredients

Directions

Soak the gum

  1. Soak the gum‑dragon in cold water in a covered container for 24 hours.

  2. Wring the soaked gum through a strong cloth.

Make the paste

  1. Place the gum on a marble slab and grind it with your fist, adding lemon juice gradually.

  2. Incorporate the icing sugar gradually until fully absorbed.

  3. Knead in the starch powder and a few drops of blue food coloring for whiteness.

  4. Cover the finished gum paste with a cloth and let it rest in a damp place for 12 hours before use.

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).

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

Gum-dragon
Forms the elastic base that gives the paste its body and workability once hydrated.
Icing sugar
Adds sweetness and bulk, stiffening the paste as it is absorbed.
Starch powder
Absorbs moisture and keeps the kneaded paste from becoming sticky.
Lemon juice
Adds acidity that helps the gum break down and soften during grinding.

The step that matters

Grinding in the icing sugar gradually. Adding sugar too quickly can leave lumps and a stiff, crumbly paste because the gum cannot absorb it all at once. Small additions let the gum hydrate evenly, giving a smooth, pliable result.

“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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