Why it works: Tomato and celery are a kitchen classic. They rank in the top 4% of all ingredient pairs, and cooks put them together in 3,377 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Tomato Jelly
Ingredients
Directions
Prepare the base
Soften the gelatin in cold water for 5 minutes.
Cook the tomatoes, onion, and celery together for 10 minutes.
Set the jelly
Add the vinegar and softened gelatin, stirring until dissolved.
Strain the mixture and pour it into a mold.
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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Tomato + celerytop 4% of all pairsSmell alikemoderateCooked together3,377 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Onion + celerytop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Tomato + oniontop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + vinegartop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
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Tomato + vinegartop 16% of all pairsSmell alikemoderateCooked together5,063 recipes
Shared aroma: beta-damascenone (apple, rose).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Gelatin
- Sets the liquid into a firm, sliceable jelly as it cools.
- Tomatoes
- Provide the main flavor and body of the jelly.
- Vinegar
- Adds acidity that brightens the tomato flavor.
The step that matters
Dissolve the gelatin fully. The softened gelatin must dissolve completely into the mixture before straining and molding. Undissolved gelatin leaves gritty specks and weak spots, and the jelly may not set firmly.
Swap the onion
How well each one fits the dish's main ingredients (gelatin, tomato, celery, vinegar):
- Capsicumfits better
- Cucumberfits better
- Mustardfits better
- Onionthe original
Fit is the average pairing score against gelatin, tomato, celery, vinegar. 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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