Why it works: Tomato and pepper are a kitchen classic. They rank in the top 7% of all ingredient pairs, and 17,923 recipes mention both. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Tomato Jelly Salad
Ingredients
Directions
Make the jelly
Simmer the tomatoes, onion, salt, and pepper until the onion is tender.
Strain the mixture through a fine sieve.
Soak the gelatin in the cold water for 5 minutes, then add it to the hot tomato mixture. Stir well and pour into an oblong mold.
Set the mold on ice until the jelly is set.
Serve
Cut into slices, lay on lettuce leaves, and serve with Russian 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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Tomato + peppertop 7% of all pairsAroma overlapmoderateMentioned together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + oniontop 8% of all pairsAroma overlapmoderateMentioned together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + peppertop 11% of all pairsAroma overlapmoderateMentioned together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + gelatintop 30% of all pairsAroma overlaplowMentioned together53 recipes
Shared aroma: 1-nonanal (fatty, waxy).
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Gelatin + oniontop 31% of all pairsAroma overlaplowMentioned together211 recipes
Shared aroma: acetic acid (sour, vinegar).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Tomatoes
- Provide the main flavour and the liquid base of the jelly.
- Gelatin
- Sets the tomato liquid into a firm, sliceable jelly as it cools.
The step that matters
Adding the gelatin to the hot tomato mixture. Gelatin must be soaked first so it hydrates evenly, then fully dissolved in the hot liquid. Undissolved or lumpy gelatin leaves specks and weak patches, and the jelly will not set uniformly.
Flavor stand-ins for the onion
How well each one fits the dish's main ingredients (tomato, gelatin, pepper):
- Capsicumbetter flavor fit
- Carrotbetter flavor fit
- Lettucebetter flavor fit
- Onionthe original
Fit is the average pairing score against tomato, gelatin, pepper. 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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