Why it works: Pepper and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Salad Dressing
Ingredients
Directions
Make the dressing
In a deep soup plate, place the yolks of four eggs, two teaspoons best ground mustard, three-quarters teaspoon of salt, half teaspoon cayenne pepper, and half teaspoon white pepper. With a large fork or spoon, stir continually in one direction.
With the other hand, pour in the best olive oil slowly from time to time from the bottle. As soon as it commences to bind and get stringy, add quickly a little lemon juice or vinegar.
Keep stirring continually until three-quarters of a pint of oil, the juice of one lemon, and one-half gill of vinegar are used up. Stir up well, then place at once on ice.
Fix a broken dressing
If the dressing breaks, add quickly another yolk of egg and stir, holding back the oil for a minute.
Nutrition, whole recipe (rough)
What these numbers assume: 8 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Olive Oil | 1 tbsp (14g) | 119 |
| Egg | 1 large egg (50g) | 78 |
| Lemon | juice of 1 lemon (48ml) | 12 |
| Chili | 1 tsp (2.7g) | 8 |
| Black Pepper | 1 tsp ground (2.3g) | 6 |
| Mustard | 1 tsp (5g) yellow | 3 |
| Vinegar | 1 tbsp (15ml) distilled | 3 |
| Salt | 1 tsp (6g) | 0 |
One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.
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. See the original page.
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.
-
Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Pepper + mustardtop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Mustard + lemontop 11% of all pairsSmell alikestrongCooked together3,816 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
-
Pepper + vinegartop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg yolks
- Their emulsifiers hold the oil in tiny droplets, giving the dressing a smooth, thick body.
- Oil
- Forms the bulk of the dressing, suspended within the yolk mixture as fine droplets.
- Mustard
- Helps stabilise the emulsion so the dressing is less likely to separate.
- Lemon juice
- Adds acidity that brightens the flavour and helps the emulsion set.
The step that matters
Adding the oil slowly while stirring constantly. Egg yolk lecithin can only coat so many oil droplets at once. Pouring too fast or stopping to stir lets the oil separate out, so the dressing breaks.
Swap the white pepper
How well each one fits the dish's main ingredients (pepper, egg, mustard, lemon, vinegar):
- Tarragonfits better
- Dillfits better
- Parsleyfits better
- White pepperthe original
Fit is the average pairing score against pepper, egg, mustard, lemon, 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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