Why it works: Vinegar and mustard 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 ↓
Boiled Mayonnaise Without Oil
Ingredients
Directions
Prepare
Boil the vinegar in a saucepan.
In a bowl, beat the egg, then add mustard, salt, sugar, and pepper.
Thicken and serve
Slowly pour the hot vinegar into the egg mixture while whisking continuously until thickened.
Serve immediately or refrigerate for later use.
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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Vinegar + mustardtop 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).
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Vinegar + peppertop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Vinegar + sugartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
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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
- Vinegar
- Provides the sharp acidity that gives the sauce its tangy flavor.
- Egg
- Its proteins thicken as they warm, giving the sauce its body.
- Mustard
- Helps hold the mixture together and adds a sharp, savory flavor.
- Sugar
- Balances the sharpness of the vinegar with a touch of sweetness.
The step that matters
Slowly pour the hot vinegar while whisking continuously. Egg proteins thicken as they warm, so too much heat added too fast can scramble them into lumps. Pouring slowly while whisking spreads the heat evenly through the egg, producing a smooth, thick sauce.
Swap the mustard
How well each one fits the dish's main ingredients (vinegar, egg, sugar, pepper):
- Capsicumfits better
- Mustardthe original
- Cucumberfits less well
- Cabbagefits less well
Fit is the average pairing score against vinegar, egg, sugar, pepper. 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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