Why it works: Mustard and vinegar are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 14,067 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Dressing for Canned Lobster, Etc
Ingredients
Directions
Rub the yolks of the hard-boiled eggs to a smooth paste with salad oil or melted butter.
Add made mustard and fine white sugar to the egg yolk mixture.
Gradually mix in the vinegar until well combined.
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 + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + vinegartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Butter + sugartop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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Mustard + sugartop 19% of all pairsSmell alikemoderateCooked together8,424 recipes
Shared aroma: guaiacol (smoky, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Hard-boiled eggs
- Yolks form a smooth, rich base that gives the dressing body.
- Salad oil or melted butter
- Fat coats the yolk paste, adding smoothness and a rounder mouthfeel.
- Made mustard
- Adds sharp flavour and helps emulsify the dressing.
- Fine white sugar
- Balances the sharpness of the vinegar and mustard with gentle sweetness.
- Vinegar
- Provides acidity that brightens the dressing and keeps it tangy.
The step that matters
Gradually mix in the vinegar. Adding vinegar slowly to the yolk and fat paste lets the mixture emulsify smoothly instead of separating. Mixing it in all at once can break the texture and leave the dressing thin and greasy.
Swap the mustard
How well each one fits the dish's main ingredients (egg, butter, sugar, vinegar):
- Mustardthe original
- Capsicumfits about as well
- Cucumberfits about as well
- Shallotfits about as well
Fit is the average pairing score against egg, butter, sugar, vinegar. 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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