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Dessert

Tomato Jelly

A sweet and tangy tomato jelly made with tomatoes, sugar, vinegar, pepper, salt, and gelatin.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Tomato and pepper are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 17,923 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Tomato Jelly

Ingredients

Directions

Prepare

  1. Drain the juice from the can of tomatoes.

Make the jelly

  1. In a pot, combine the tomato juice, vinegar, sugar, pepper, and salt.

  2. Soak the gelatine in a little tomato juice, then add it to the pot.

  3. Heat the mixture until it reaches boiling point.

  4. Pour into small molds and let set.

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. Tomato + peppertop 7% of all pairs
    Smell alikemoderate
    Cooked together17,923 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  2. Vinegar + peppertop 14% of all pairs
    Smell alikemoderate
    Cooked together27,814 recipes

    Shared aroma: 4'-methylacetophenone (bitter almond).

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

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

  4. Tomato + vinegartop 16% of all pairs
    Smell alikemoderate
    Cooked together5,063 recipes

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

  5. Sugar + peppertop 32% of all pairs
    Smell alikelow
    Cooked together19,401 recipes

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

Sugar and pepper barely smell alike, yet cooks put them together in 19,401 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

Gelatine
Sets the liquid into a firm, sliceable jelly as it cools.
Sugar
Adds sweetness and balances the sharpness of the tomato and vinegar.
Vinegar
Adds acidity that gives the tomato flavour a sharp, bright edge.
Tomatoes
Provide the main liquid and the tomato flavour of the jelly.

The step that matters

Soak the gelatine before adding it. Gelatine needs to hydrate in liquid before heating so it dissolves evenly; added dry or in clumps, it can leave lumps or fail to set smoothly.

Swap the tomato

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

  1. Capsicumfits better
  2. Mustardfits better
  3. Cabbagefits better
  4. Tomatothe original

Fit is the average pairing score against sugar, vinegar, pepper. 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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