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 ↓
Slaw Dressing
Ingredients
Directions
Make the dressing
Beat the yolks of 3 eggs with 1 teaspoon cornstarch and ½ cup sugar.
Dissolve the cornstarch in a little milk.
Add 2 tablespoons melted butter, 1 teaspoon mustard, 1 teaspoon salt, and ½ cup vinegar.
Stir in 1 cup cream or milk and a pinch of cayenne pepper.
Cook in a double boiler until thick.
Finish and serve
Fold in the stiffly beaten egg whites before serving.
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.
-
Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
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).
-
Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
-
Vinegar + peppertop 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
- Egg yolks
- Thicken the dressing and add richness as they cook into a custard.
- Egg whites
- Add lightness and airy body when folded in stiffly beaten.
- Cornstarch
- Thickens the liquid so the dressing sets smooth and holds its body.
- Sugar
- Adds sweetness that balances the sharp vinegar.
- Vinegar
- Provides acidity that gives the dressing its tang.
- Cream or milk
- Supplies liquid and richness, giving the dressing a smooth, creamy body.
The step that matters
Cook in a double boiler until thick. Egg yolks can curdle or scramble if overheated. Gentle, indirect heat lets the cornstarch and yolks thicken the dressing smoothly into a custard.
Swap the mustard
How well each one fits the dish's main ingredients (egg, sugar, butter, vinegar, cream, pepper):
- Capsicumfits about as well
- Mustardthe original
- Asparagusfits about as well
- Potatofits about as well
Fit is the average pairing score against egg, sugar, butter, vinegar, cream, pepper. 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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