Why it works: Parsley and lettuce match in chemistry and in kitchens. They rank in the top 5% of all ingredient pairs, and cooks put them together in 1,483 recipes. Both carry trans-2-hexenal, which smells green, leafy. The science ↓
Bermuda Onions Dressed
Ingredients
Directions
Prepare the onions
Peel and slice the onions.
Soak the onions in salt water for 2 hours.
Drain and press the onions dry.
Dress and serve
Place the onions in a salad bowl.
Season with coarse sea salt, white pepper, and powdered sugar.
Pour cider vinegar over the onions.
Sprinkle with chopped parsley and serve on curly lettuce leaves.
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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Parsley + lettucetop 5% of all pairsSmell alikestrongCooked together1,483 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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Cider + vinegartop 6% of all pairsSmell alikemoderateCooked together3,431 recipes
Shared aroma: 4-ethyl-2-methoxyphenol (smoky, clove).
-
Onion + lettucetop 8% of all pairsSmell alikestrongCooked together3,562 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Onion + vinegartop 14% of all pairsSmell alikemoderateCooked together18,226 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
- Bermuda onions
- Provide the main body of the salad, mellowed by soaking and pressing to reduce sharpness.
- Powdered sugar
- Adds sweetness that balances the sharpness of the onions and the vinegar.
- Cider vinegar
- Adds acidity that gives the salad its tangy flavor.
The step that matters
Drain and press the onions dry. Onions hold a lot of water and sharp sulfur compounds. Pressing them dry before dressing keeps the salad from becoming watery and dilutes the vinegar, so the seasoning clings and the flavor stays concentrated.
Swap the white pepper
How well each one fits the dish's main ingredients (onion, sugar, cider, vinegar, parsley, lettuce):
- Tarragonfits better
- Capersfits better
- Thymefits better
- White pepperthe original
Fit is the average pairing score against onion, sugar, cider, vinegar, parsley, lettuce. 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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