Why it works: Pepper and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Tomato Aspic
Ingredients
Directions
Prepare
Soak the gelatine in cold water for half an hour.
Strain the tomatoes and place them in a saucepan with the onion, bay leaves, salt, and cayenne pepper.
Make the aspic
Bring the mixture to a boil and add the soaked gelatine, stirring until dissolved.
Add the lemon juice and strain the mixture again.
Pour into a mold and refrigerate until thickened.
Serve
Serve individually with mayonnaise 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 their aromas overlap, and how often cooks already put them together.
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Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Tomato + oniontop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Tomato + lemontop 11% of all pairsSmell alikemoderateCooked together4,592 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 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
- Gelatine
- Sets the tomato liquid into a firm, wobbly aspic once chilled.
- Tomatoes
- Provide the main body, flavour and colour of the aspic.
- Lemon juice
- Adds acidity that brightens the tomato flavour.
The step that matters
Dissolving the gelatine. Gelatine must be fully dissolved into the hot tomato mixture, not left in lumps. Boiling the mixture is fine, but undissolved gelatine will leave gritty spots and weaken the set once chilled.
Swap the onion
How well each one fits the dish's main ingredients (tomato, pepper, lemon):
- Capsicumfits better
- Okrafits better
- Spinachfits better
- Onionthe original
Fit is the average pairing score against tomato, pepper, lemon. 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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