Why it works: Cucumber and tomato match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and 2,402 recipes mention both. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
The recipe
Ingredients
Contains: egg, fish (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Prepare
Cut the cucumber, beetroot, potatoes, and tomatoes into coarse shreds or thin slices.
In a salad bowl, press the hard-boiled egg yolk through a sieve.
Make the dressing
Add tartare sauce, salt, and cayenne pepper to the yolk and mix well.
Gradually work in salad oil, wine vinegar, and anchovy essence.
Assemble and serve
Add the prepared vegetables and mix carefully.
Dish in a clean salad bowl, placing the lettuce heart in the center.
Garnish with chopped hard-boiled eggs, chervil, parsley, and capers.
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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Cucumber + tomatotop 3% of all pairsAroma overlapstrongMentioned together2,402 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Potato + tomatotop 3% of all pairsAroma overlapstrongMentioned together2,797 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Cucumber + beetroottop 3% of all pairsAroma overlapstrongMentioned together344 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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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 + winetop 4% of all pairsAroma overlapstrongMentioned together2,580 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
- Hard-boiled egg yolk
- Its fat and emulsifying lecithin bind the oil and vinegar into a smooth, creamy dressing.
- Salad oil
- Provides fat that gives the dressing body and a rich, silky mouthfeel.
- French wine vinegar
- Adds acidity that brightens the dressing and balances the richness of the yolk and oil.
- Potatoes
- Starchy body that absorbs dressing and gives the salad substance.
- Tomatoes
- Contribute moisture and acidity, adding juiciness and freshness to the salad.
The step that matters
Gradually work in salad oil, wine vinegar, and anchovy essence. Adding the oil slowly lets the egg yolk emulsify it into a stable, smooth dressing. Pouring it in too fast can break the emulsion, leaving the dressing greasy and separated.
Flavor stand-ins for the beetroot
How well each one fits the dish's main ingredients (cucumber, potato, tomato, egg, sauce, pepper, wine):
- Capsicumbetter flavor fit
- Asparagusbetter flavor fit
- Spinachbetter flavor fit
- Beetrootthe original
Fit is the average pairing score against cucumber, potato, tomato, egg, sauce, pepper, wine. 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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