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 ↓
Salad Dressing
Ingredients
Directions
Make the dressing
In a bowl, beat the yolks of raw eggs with vinegar until thoroughly mixed.
Place the mixture on the stove and stir constantly until it thickens enough to drop heavily from a spoon.
Remove from heat and add butter, stirring until smooth.
Season with salt, dry mustard, and pepper to taste.
Serve
When ready to use, thin the dressing with a little whipped cream to achieve the desired consistency.
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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Vinegar + mustardtop 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).
-
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).
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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
- Egg yolks
- Thicken and emulsify the dressing as they cook, giving it a creamy, smooth body.
- Vinegar
- Adds sharp acidity that balances the richness of the yolks and butter.
- Butter
- Adds fat that makes the cooked dressing smooth and rich.
- Whipped cream
- Lightens the thickened dressing and adjusts its consistency when thinning.
The step that matters
Stirring the yolks over heat. Egg yolks thicken from gentle heat but can scramble if overheated or left unstirred. Constant stirring spreads the heat evenly so the mixture thickens smoothly instead of curdling.
Swap the mustard
How well each one fits the dish's main ingredients (egg, vinegar, butter, pepper, cream):
- Capsicumfits about as well
- Potatofits about as well
- Mustardthe original
- Spinachfits about as well
Fit is the average pairing score against egg, vinegar, butter, pepper, 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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