Why it works: Gelatin and sugar are a kitchen classic. They rank in the top 7% of all ingredient pairs, and 2,778 recipes mention both. Both carry ethanol, which smells alcoholic, ethereal. The science ↓
Tomato Jelly
Ingredients
Directions
Prepare
Soak the gelatin in cold water until soft.
Cook the tomatoes and seasonings (except salt) for 20 minutes.
Strain the mixture and add salt.
Set and serve
Pour the hot liquid over the softened gelatin and stir until dissolved.
Pour into custard cups that have been wet with cold water.
Serve very cold on lettuce leaves with mayonnaise dressing.
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 aroma chemistry they share, and how many recipes mention both.
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Gelatin + sugartop 7% of all pairsAroma overlapmoderateMentioned together2,778 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Onion + tomatotop 8% of all pairsAroma overlapmoderateMentioned together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Clove + tomatotop 12% of all pairsAroma overlapmoderateMentioned together3,474 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
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Onion + clovetop 13% of all pairsAroma overlapmoderateMentioned together16,901 recipes
Shared aroma: 2-nonanone (fruity, floral).
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Sugar + clovetop 26% of all pairsAroma overlaplowMentioned together17,182 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
Sugar and clove share little aroma chemistry, yet 17,182 recipes mention both: they likely 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
- Granulated gelatin
- Sets the liquid into a firm, sliceable jelly as it cools.
- Tomatoes
- Provide the main flavour and body of the jelly.
- Sugar
- Balances the acidity of the tomatoes with a touch of sweetness.
The step that matters
Pour the hot liquid over the softened gelatin and stir until dissolved. Gelatin only sets once fully dissolved. Undissolved granules leave gritty or weak spots, so the liquid should be hot enough and stirred thoroughly before it is poured into the cups.
Flavor stand-ins for the onion
How well each one fits the dish's main ingredients (gelatin, sugar, clove, tomato):
- Capsicumbetter flavor fit
- Carrotbetter flavor fit
- Sweet potatobetter flavor fit
- Onionthe original
Fit is the average pairing score against gelatin, sugar, clove, tomato. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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