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 ↓
Sandwich Dressing
Ingredients
Directions
Beat the egg yolks in a bowl.
Add corn starch, mustard, sugar, butter, and red pepper, then mix well.
Gradually add vinegar.
Bring to a boil.
Allow to cool.
Stir in 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).
-
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).
-
Corn + peppertop 11% of all pairsSmell alikemoderateCooked together5,324 recipes
Shared aroma: 2-nonenal (fatty, green).
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 as they set with heat and add richness.
- Corn starch
- Thickens the liquid into a smooth, spreadable dressing when heated.
- Mustard
- Adds sharp flavour that balances the sweetness and richness.
- Sugar
- Balances the acidity of the vinegar with sweetness.
- Vinegar
- Provides acidity that gives the dressing its tang.
- Cream
- Adds moisture and softens the texture of the dressing.
The step that matters
Bring to a boil. Egg yolks and corn starch need to reach a boil to thicken properly. Heating too gently leaves the dressing thin, while overheating can scramble the yolks and make it lumpy.
Swap the mustard
How well each one fits the dish's main ingredients (egg, corn, sugar, butter, pepper, vinegar, cream):
- Capsicumfits better
- Potatofits about as well
- Mustardthe original
- Asparagusfits about as well
Fit is the average pairing score against egg, corn, sugar, butter, pepper, vinegar, 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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