Why it works: Lettuce and onion match in chemistry and in kitchens. They rank in the top 8% of all ingredient pairs, and cooks put them together in 3,562 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Dutch Lettuce
Ingredients
Directions
Make the dressing
Fry the bacon until crispy and reserve the drippings.
Add vinegar to the drippings in the pan.
Stir in the sugar until dissolved.
Assemble the salad
Pour the warm sauce over the chopped lettuce and onion mixture.
Toss gently to combine.
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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Lettuce + oniontop 8% of all pairsSmell alikestrongCooked together3,562 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Vinegar + oniontop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
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Vinegar + lettucetop 14% of all pairsSmell alikemoderateCooked together2,370 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Vinegar + sugartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
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Sugar + lettucetop 29% of all pairsSmell alikemoderateCooked together1,486 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Bacon
- Its drippings supply fat and smoky flavor that carry the warm dressing.
- Vinegar
- Adds acidity that balances the sweetness and sharpens the dressing.
- Sugar
- Sweetens the dressing to offset the sharpness of the vinegar.
- Lettuce
- Provides the crisp, leafy base that the warm dressing wilts slightly.
- Onion
- Adds a sharp, pungent bite to the salad.
The step that matters
Pour the warm sauce over the lettuce and onion. The dressing must be warm but not boiling when poured. Heat softens the lettuce so it wilts lightly, while the crisp texture is preserved only if the lettuce is not overheated or left to sit before serving.
Swap the onion
How well each one fits the dish's main ingredients (vinegar, sugar, lettuce):
- Mustardfits better
- Beetrootfits better
- Cucumberfits better
- Onionthe original
Fit is the average pairing score against vinegar, sugar, 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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