Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Salad Dressing
Ingredients
Directions
Make the dressing
Beat the eggs in a large bowl until very stiff.
Add the sweet milk or cream and salt, then beat thoroughly.
Mix the mustard with a little vinegar to avoid lumps, then add to the bowl.
Stir in the sharp vinegar and melted butter, and beat again.
Cook and serve
Set the bowl in a kettle of water and boil until the dressing thickens.
Leave in a cool place until ready to serve; if too thick, thin with milk.
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.
Photo for illustrative purposes only · Contact us to use it
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Vinegar + mustardtop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Egg + milktop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, green).
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Mustard + buttertop 22% of all pairsSmell alikemoderateCooked together8,003 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
- Beaten stiff, they structure the dressing and thicken it as they cook.
- Sweet milk or cream
- Adds moisture and softness, and can be used to thin the dressing if it becomes too thick.
- Sharp vinegar
- Adds acidity that gives the dressing its tangy flavour.
- Mustard
- Adds sharp, pungent flavour that balances the richness of the eggs and butter.
- Melted butter
- Adds fat, giving the dressing richness and a smooth mouthfeel.
The step that matters
Set the bowl in a kettle of water and boil until the dressing thickens. Gentle heat from the steam-warmed water cooks the beaten egg proteins slowly, thickening the dressing. Excess heat can scramble the eggs and curdle the mixture.
Swap the mustard
How well each one fits the dish's main ingredients (egg, milk, vinegar, butter):
- Potatofits better
- Capsicumfits better
- Asparagusfits about as well
- Mustardthe original
Fit is the average pairing score against egg, milk, vinegar, butter. 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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