Why it works: Tomato and pepper match in chemistry and in kitchens. They rank in the top 4% of all ingredient pairs, and 17,913 recipes mention both. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
The recipe
Ingredients
Directions
Make the tomato base
Stew the skinned tomatoes until soft.
Strain the tomatoes to remove solids.
Season the strained mixture with pepper, coarse sea salt, onion juice, and red pepper.
Set the jelly
Dissolve the gelatin in hot water.
Combine the gelatin with the tomato mixture.
Pour into a large mold or individual cups.
Refrigerate overnight before serving.
Serve
Serve on lettuce leaves with salad 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 4% of all pairsAroma overlapstrongMentioned together17,913 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + oniontop 4% of all pairsAroma overlapstrongMentioned together20,622 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + oniontop 6% of all pairsAroma overlapmoderateMentioned together68,463 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + gelatintop 19% of all pairsAroma overlaplowMentioned together53 recipes
Shared aroma: 1-nonanal (fatty, waxy).
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Gelatin + oniontop 20% 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
- Fresh tomatoes
- Provide the main flavour and liquid body of the jelly.
- Gelatin
- Sets the tomato liquid into a firm, sliceable jelly as it chills.
The step that matters
Dissolve the gelatin in hot water. Gelatin must fully dissolve before it is mixed into the tomato liquid; undissolved granules leave gritty specks and uneven setting. Gelatin then needs cold time to form a gel network.
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
- Potatobetter 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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