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
Ingredients
Directions
Make the base
Cream together sugar, flour, and butter.
Add beaten eggs, red pepper, salt, and dry mustard.
Stir in vinegar and water, then beat well.
Cook and finish
Boil the mixture until thick.
Once cooled, thin with whipped cream.
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.
Photo for illustrative purposes only · Contact us to use it
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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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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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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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and butter barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Thicken the mixture and add richness as they set when heated.
- Flour
- Thickens the mixture so it holds body after boiling.
- Butter
- Adds fat for smoothness and a rich mouthfeel.
- Sugar
- Balances the sharpness of the vinegar with sweetness.
- Vinegar
- Adds acidity that gives the dressing its tang.
- Whipped cream
- Thins the cooled mixture and adds lightness and fat.
The step that matters
Boil the mixture until thick. Egg proteins thicken as they heat, but overheating can curdle them. Cook gently and stir, so the mixture thickens smoothly without scrambling.
Swap the mustard
How well each one fits the dish's main ingredients (sugar, flour, butter, egg, pepper, vinegar, cream):
- Capsicumfits about as well
- Mustardthe original
- Shallotfits about as well
- Chivefits about as well
Fit is the average pairing score against sugar, flour, butter, egg, pepper, vinegar, 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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