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
Make the dressing
In a bowl, combine the beaten egg, salt, cream or milk, mustard, cayenne, sugar, and melted butter.
Gradually add the vinegar while stirring.
Place the mixture in a double boiler and stir until it thickens.
Chill
Chill thoroughly before using.
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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Cream + buttertop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Cream + sugartop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
-
Pepper + vinegartop 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
- Egg
- Emulsifies and thickens the dressing as it cooks, giving it body.
- Cream or rich milk
- Adds richness and moisture, softening the texture of the dressing.
- Melted butter
- Contributes fat for richness and a smooth mouthfeel.
- Vinegar
- Adds acidity that sharpens the flavour and balances the richness.
- Mustard
- Adds sharpness and helps stabilise the emulsion.
The step that matters
Stir over the double boiler until it thickens. Egg proteins thicken gently with indirect heat. If the mixture gets too hot, the eggs can scramble and the dressing will turn lumpy and grainy instead of smooth.
Swap the mustard
How well each one fits the dish's main ingredients (egg, cream, pepper, sugar, butter, vinegar):
- Capsicumfits about as well
- Mustardthe original
- Asparagusfits about as well
- Potatofits about as well
Fit is the average pairing score against egg, cream, pepper, sugar, butter, 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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