Why it works: Mustard and lettuce match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,356 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Mayonnaise of Fish
Ingredients
Directions
Make the dressing
Rub the yolks of the eggs smooth with the oil.
Add the sugar, salt, mustard, and pepper, mixing well.
Gradually add the vinegar, a few drops at a time.
Assemble and serve
Cut the fish into strips about 1 inch long and shred the lettuce.
Mix the fish and lettuce in a salad bowl.
Pour the dressing over the mixture and garnish with rings of the egg whites.
Serve immediately to prevent the lettuce from becoming limp.
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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Mustard + lettucetop 1% of all pairsSmell alikestrongCooked together1,356 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Vinegar + mustardtop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Pepper + mustardtop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + lettucetop 9% of all pairsSmell alikemoderateCooked together4,037 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Vinegar + peppertop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Hard-boiled eggs
- Yolks are mashed with oil to form a smooth, thick emulsified dressing base.
- Oil
- Emulsifies with the egg yolks to give the dressing its rich, creamy body.
- Vinegar
- Adds acidity that sharpens the dressing and balances the richness of the oil and yolks.
- Cold boiled fish
- Provides the main protein and substance of the salad.
- Lettuce
- Forms the crisp, cool base that the fish and dressing are served over.
The step that matters
Gradually add the vinegar, a few drops at a time. Adding vinegar slowly lets the yolk and oil emulsify into a stable, smooth dressing. Pouring it in quickly can cause the mixture to split and look oily and curdled.
Swap the lettuce
How well each one fits the dish's main ingredients (fish, egg, sugar, vinegar, pepper, mustard):
- Horseradishfits better
- Capsicumfits about as well
- Cucumberfits about as well
- Lettucethe original
Fit is the average pairing score against fish, egg, sugar, vinegar, pepper, mustard. 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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