Why it works: Celery and mustard are a kitchen classic. They rank in the top 2% of all ingredient pairs, and 4,169 recipes mention both. Both carry guaiacol, which smells smoky, sweet. The science ↓
Tomato Jelly
Ingredients
Directions
Prepare
Soak the gelatin in ⅓ cup of cold water for 5 minutes.
Make the jelly
Combine the tomato pulp, sugar, celery salt, mustard, and vinegar in a pot.
Heat the mixture until boiling.
Stir in the soaked gelatin until dissolved.
Set and serve
Pour into a border mold, individual molds, or a granite bread pan.
Refrigerate until set, then cut into cubes if using a bread pan.
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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Celery + mustardtop 2% of all pairsAroma overlapmoderateMentioned together4,169 recipes
Shared aroma: guaiacol (smoky, sweet).
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Tomato + celerytop 4% of all pairsAroma overlapmoderateMentioned together3,377 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Mustard + vinegartop 7% of all pairsAroma overlapmoderateMentioned together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + gelatintop 7% of all pairsAroma overlapmoderateMentioned together2,778 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Tomato + mustardtop 11% of all pairsAroma overlapmoderateMentioned together2,482 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Tomato pulp
- Provides the main body, flavour and colour of the jelly.
- Gelatin
- Sets the liquid into a firm jelly as it cools.
- Vinegar
- Adds acidity that brightens the tomato flavour.
- Sugar
- Balances the acidity and tartness of the tomato and vinegar.
The step that matters
Stirring in the soaked gelatin until dissolved. Gelatin must fully dissolve in the hot mixture before cooling; undissolved granules leave gritty spots and weak, uneven setting in the finished jelly.
Flavor stand-ins for the celery
How well each one fits the dish's main ingredients (tomato, sugar, mustard, vinegar, gelatin):
- Tarragonbetter flavor fit
- Capersabout as good a flavor fit
- Cinnamonabout as good a flavor fit
- Celerythe original
Fit is the average pairing score against tomato, sugar, mustard, vinegar, gelatin. 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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