Why it works: Sugar and gelatin are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 2,778 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓
Tomato Jelly
Ingredients
Directions
Make the jelly
Boil the soup stock, tomatoes, onion, clove, peppercorns, salt, sugar, and catsup together for 30 minutes or until the tomatoes are soft.
Soften the gelatin in ½ cup of cold water, then stir it into the tomato mixture until dissolved.
Mold the mixture in a ring mold for a decorative effect.
Serve
Fill the center with celery salad mixed with mayonnaise or a cooked dressing, and surround it with lettuce.
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.
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Sugar + gelatintop 7% of all pairsSmell alikemoderateCooked together2,778 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Tomato + oniontop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + clovetop 12% of all pairsSmell alikemoderateCooked together3,474 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
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Onion + clovetop 13% of all pairsSmell alikemoderateCooked together16,901 recipes
Shared aroma: 2-nonanone (fruity, floral).
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Clove + sugartop 26% of all pairsSmell alikelowCooked together17,182 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
Clove and sugar barely smell alike, yet cooks put them together in 17,182 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
- Gelatin
- Sets the tomato liquid into a firm, sliceable jelly that holds its mold shape.
- Tomatoes
- Provide the main body, acidity and tomato flavour of the jelly.
- Soup stock
- Adds savoury depth and body to the tomato base.
- Catsup
- Adds extra tomato flavour, sweetness and tang to the base.
The step that matters
Dissolving the gelatin. Gelatin must be fully softened in cold water and dissolved into the hot mixture; if it is left undissolved or the mixture is too hot when added, it will set unevenly or lose setting power.
Swap the onion
How well each one fits the dish's main ingredients (tomato, clove, sugar, gelatin):
- Capsicumfits better
- Carrotfits better
- Sweet potatofits better
- Onionthe original
Fit is the average pairing score against tomato, clove, sugar, gelatin. 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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