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 Sauce for Ham
Ingredients
Directions
Make the sauce
In a bowl, mix together the mustard, beaten egg, and sugar.
Cook the mixture over hot water, slowly adding the water and vinegar.
Continue cooking until the sauce thickens to a custard-like consistency.
Remove from heat and stir in the olive oil.
Serve
Serve the sauce hot or cold.
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 + olivetop 8% of all pairsSmell alikestrongCooked together5,950 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Vinegar + olivetop 10% of all pairsSmell alikemoderateCooked together12,297 recipes
Shared aroma: isoamyl acetate (banana, fruity).
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Sugar + vinegartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
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Mustard + sugartop 19% of all pairsSmell alikemoderateCooked together8,424 recipes
Shared aroma: guaiacol (smoky, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Set and thicken the sauce as they cook, giving it a custard-like body.
- Mustard
- Provides the sharp, pungent flavor that defines the sauce.
- Vinegar
- Adds acidity that balances the richness and sharpness of the sauce.
- Olive oil
- Adds fat and smoothness to the finished sauce.
The step that matters
Cooking over hot water until thickened. Egg proteins set gently as the mixture warms. If it gets too hot, the eggs can scramble and curdle, so slow, indirect heat and constant stirring keep the sauce smooth.
Swap the mustard
How well each one fits the dish's main ingredients (egg, sugar, vinegar, olive):
- Capsicumfits about as well
- Cucumberfits about as well
- Mustardthe original
- Asparagusfits less well
Fit is the average pairing score against egg, sugar, vinegar, olive. 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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