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 ↓
Mustard Dressing
Ingredients
Directions
Mix mustard, salt, sugar, flour, cayenne pepper, and ham gravy in a bowl until well combined.
Beat the egg in a separate bowl, then mix it into the mustard mixture.
Gradually add vinegar to the mixture to prevent lumps.
Cook the mixture in a double boiler or over a pan of boiling water, stirring often until it thickens.
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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Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Mustard + flourtop 13% of all pairsSmell alikemoderateCooked together5,066 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Pepper + vinegartop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Mustard + hamtop 14% of all pairsSmell alikelowCooked together747 recipes
Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg
- Thickens the dressing as it cooks and gives it a rich, creamy body.
- Flour
- Stabilises the mixture and helps it thicken without becoming grainy.
- Vinegar
- Adds sharp acidity that balances the richness and sweetness of the dressing.
- Best mustard
- Provides the main sharp, pungent flavour of the dressing.
The step that matters
Adding the vinegar gradually. Pouring the vinegar in slowly and stirring keeps the flour and egg evenly dispersed, which prevents lumps from forming as the mixture thickens.
Swap the mustard
How well each one fits the dish's main ingredients (sugar, flour, pepper, egg, ham, vinegar):
- Mustardthe original
- Capsicumfits about as well
- Shallotfits less well
- Cucumberfits less well
Fit is the average pairing score against sugar, flour, pepper, egg, ham, vinegar. 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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