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 ↓
Fruit Salad Dressing
Ingredients
Directions
Make the dressing base
In a bowl, slightly beat the eggs.
Add salt, cayenne pepper, dry mustard, sugar, and cornstarch; mix until smooth.
Cook and finish
Heat the vinegar until hot.
Slowly add the hot vinegar to the egg mixture while beating continuously.
Return the mixture to the stove and stir until thick.
Remove from heat and add butter; beat until light and cool.
When ready to use, fold in the whipped cream.
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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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Pepper + mustardtop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Pepper + vinegartop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Thicken the dressing as they set with heat, giving it a rich, custard-like body.
- Heavy cream
- Adds lightness and richness when folded in, softening the dressing's texture.
- Butter
- Adds fat for smoothness and a rounder, silkier mouthfeel.
- Vinegar
- Adds acidity that sharpens the flavor and balances the sweetness.
- Cornstarch
- Thickens the mixture as it heats, helping it turn stiff and smooth.
The step that matters
Slowly add the hot vinegar to the egg mixture while beating continuously. Adding hot liquid too fast or without constant beating can heat the eggs unevenly, causing them to scramble into lumps instead of forming a smooth, thick custard.
Swap the mustard
How well each one fits the dish's main ingredients (egg, pepper, sugar, vinegar, butter, cream):
- Capsicumfits about as well
- Mustardthe original
- Asparagusfits about as well
- Potatofits about as well
Fit is the average pairing score against egg, pepper, sugar, vinegar, butter, 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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