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 Without Oil
Ingredients
Directions
Combine sour cream, vinegar, eggs, butter, sugar, mustard, and salt in a double boiler.
Stir constantly until the mixture boils.
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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Cream + buttertop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Cream + sugartop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Vinegar + sugartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
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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
- Sour cream
- Adds creamy body and a mild tang that gives the dressing its richness.
- Vinegar
- Provides sharp acidity that balances the richness and brightens the flavour.
- Eggs
- Their proteins set as they heat, thickening the dressing into a smooth, cohesive sauce.
- Butter
- Adds fat that softens the texture and rounds out the sharpness of the vinegar.
- Sugar
- Adds sweetness that offsets the acidity of the vinegar and mustard.
- Mustard
- Contributes pungent flavour and helps hold the dressing together as an emulsion.
The step that matters
Stirring constantly until the mixture boils. Egg proteins thicken gently with steady heat and stirring. If heat is uneven or stirring stops, the eggs can scramble or curdle, leaving the dressing lumpy instead of smooth.
Swap the mustard
How well each one fits the dish's main ingredients (cream, vinegar, egg, butter, sugar):
- Mustardthe original
- Capsicumfits about as well
- Chivefits about as well
- Cucumberfits about as well
Fit is the average pairing score against cream, vinegar, egg, butter, sugar. 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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