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 base
Mix egg yolks, mustard, salt, sugar, butter, and vinegar in a bowl.
Heat the mixture over medium heat until it begins to boil.
Thicken
Add 1 more cup of buttermilk mixed with 3 tablespoons of flour.
Cook until thick, stirring constantly.
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).
-
Sugar + buttermilktop 9% of all pairsSmell alikestrongCooked together2,973 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
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).
-
Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 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
- Egg yolks
- Their proteins set as they heat, giving the dressing body and richness.
- Buttermilk
- Provides the liquid that thickens into a creamy, pourable base.
- Vinegar
- Adds sharp acidity that balances the richness and sweetness.
- Sugar
- Adds sweetness that rounds out the sharpness of the vinegar.
- Butter
- Adds fat for a smooth texture and a rich mouthfeel.
The step that matters
Cook until thick, stirring constantly. Egg yolk proteins can curdle or scramble if the mixture overheats. Constant stirring spreads the heat evenly, prevents scorching on the bottom, and keeps the thickening smooth and lump-free.
Swap the mustard
How well each one fits the dish's main ingredients (egg, sugar, butter, vinegar, buttermilk):
- Cucumberfits about as well
- Chivefits about as well
- Mustardthe original
- Capsicumfits about as well
Fit is the average pairing score against egg, sugar, butter, vinegar, buttermilk. 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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