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 Without Oil
Ingredients
Directions
Prepare
Moisten the mustard with warm water.
Add sugar, butter, and beaten eggs, then beat well.
Cook and chill
Stir in the vinegar.
Heat until thickened.
Chill in the refrigerator after thickening.
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 + walnuttop 9% of all pairsSmell alikestrongCooked together849 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
-
Walnut + buttertop 15% of all pairsSmell alikemoderateCooked together6,832 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
-
Sugar + vinegartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
-
Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Their proteins thicken when heated and bind the sauce into a smooth body.
- Vinegar
- Adds acidity for a sharp, tangy flavour that balances the richness.
- Sugar
- Adds sweetness to balance the sharpness of the vinegar.
- Butter
- Adds fat for richness and a smoother mouthfeel.
- Ground mustard
- Adds sharp flavour and helps stabilise the emulsion.
The step that matters
Heat until thickened. Egg proteins set as they heat and thicken the sauce, but if the mixture gets too hot they can scramble and curdle. Heating gently and stopping once it thickens keeps the sauce smooth.
Swap the walnut
How well each one fits the dish's main ingredients (mustard, sugar, egg, vinegar, butter):
- Almondfits about as well
- Sesamefits about as well
- Chestnutfits about as well
- Walnutthe original
Fit is the average pairing score against mustard, sugar, egg, vinegar, butter. 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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