Why it works: Butter and milk 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 ↓
Mayonnaise Without Oil
Ingredients
Directions
Mix the eggs well in a bowl.
Add the dry mustard and sugar, then mix in the butter, vinegar, and milk.
Place the mixture in a double boiler and heat until it thickens to the consistency of custard.
Remove from heat and stir in a pinch of salt.
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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + vinegartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 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
- Egg proteins set as the mixture heats, thickening it into an emulsified, spreadable custard.
- Butter
- Adds fat for richness and a smoother, creamier mouthfeel in the finished sauce.
- Vinegar
- Adds acidity that balances richness and sharpens the flavour of the sauce.
- Milk
- Adds moisture and loosens the mixture so it thickens into a smooth sauce.
- Dry mustard
- Adds sharp, pungent flavour and helps stabilise the emulsion.
The step that matters
Heat gently in the double boiler. Egg proteins set at moderate temperatures, so heating slowly and stirring keeps the mixture smooth. Too much heat scrambles the eggs and curdles the sauce.
Swap the mustard
How well each one fits the dish's main ingredients (egg, sugar, butter, vinegar, milk):
- Capsicumfits about as well
- Potatofits about as well
- Mustardthe original
- Asparagusfits about as well
Fit is the average pairing score against egg, sugar, butter, vinegar, milk. 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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