Why it works: Sugar and gelatin 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
The book gives no cooking times; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Make the stock
Combine soup stock, tomatoes, onion, clove, and peppercorns in a pot.
Simmer for 30 minutes.
Strain the mixture.
Set the jelly
Add salt, sugar, and ketchup to the strained liquid.
Dissolve gelatin in a small amount of warm water.
Stir the dissolved gelatin into the mixture.
Pour into molds and refrigerate until set.
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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Sugar + gelatintop 7% of all pairsAroma overlapmoderateMentioned together2,778 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Sugar + ketchuptop 8% of all pairsAroma overlapstrongMentioned together260 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Tomato + oniontop 8% of all pairsAroma overlapmoderateMentioned together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Ketchup + gelatintop 9% of all pairsAroma overlapstrongMentioned together6 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Tomato + clovetop 12% of all pairsAroma overlapmoderateMentioned together3,474 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
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 color, along with acidity and body.
- Soup stock
- Forms the savory liquid base that the jelly is built on.
The step that matters
Dissolve the gelatin fully before stirring it in. Gelatin must be completely dissolved in warm liquid before it is added; undissolved granules can leave grainy spots and uneven setting. Gelatin sets only as the mixture cools, so the jelly firms in the refrigerator.
Flavor stand-ins for the onion
How well each one fits the dish's main ingredients (tomato, clove, sugar, ketchup, gelatin):
- Capsicumbetter flavor fit
- Carrotbetter flavor fit
- Cucumberbetter flavor fit
- Onionthe original
Fit is the average pairing score against tomato, clove, sugar, ketchup, 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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