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 ↓
Mayonnaise Dressing
Ingredients
Directions
In a bowl, mix the mustard, coarse sea salt, flour, sugar, and pepper.
Add the beaten eggs and then the vinegar, mixing well.
Place the mixture over steam from a kettle and stir continuously until thickened.
Thin the dressing with cream to your desired consistency.
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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Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
-
Mustard + flourtop 13% of all pairsSmell alikemoderateCooked together5,066 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
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
- Eggs
- Egg proteins coagulate when heated, thickening the dressing as it sets over steam.
- Flour
- Starch thickens the mixture as it heats, giving the dressing body.
- Vinegar
- Adds acidity that sharpens the flavor and balances the sweetness.
- Sugar
- Adds sweetness that balances the acidity of the vinegar.
- Mustard
- Adds sharp flavor and helps the dressing stay balanced and smooth.
The step that matters
Stirring over steam until thickened. Egg proteins can scramble if the mixture gets too hot or is not stirred constantly. Gentle, continuous stirring over steam heats it evenly so the flour and eggs thicken it smoothly.
Swap the mustard
How well each one fits the dish's main ingredients (flour, sugar, egg, vinegar, pepper, cream):
- Capsicumfits about as well
- Mustardthe original
- Horseradishfits about as well
- Spinachfits about as well
Fit is the average pairing score against flour, sugar, egg, vinegar, pepper, cream. 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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