Why it works: Potato and mustard are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 1,340 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Salad Dressing
Ingredients
Directions
Pass two boiled potatoes through a kitchen sieve.
Take a single spoon of mordant mustard.
Add a double quantity of salt.
Add four times the spoon of oil of Lucca crown.
Add twice the spoon of vinegar procured from town.
Add the pounded yellow of two hard-boiled eggs.
Add onion and toss the mixture.
Add a magic spoonful of anchovy sauce.
Nutrition, whole recipe (rough)
What these numbers assume: 4 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Potato | 1 medium (173g) baked | 161 |
| Egg | 1 large egg (50g) | 78 |
| Mustard | 1 tsp (5g) yellow | 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.
-
Potato + mustardtop 7% of all pairsSmell alikemoderateCooked together1,340 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Egg + mustardtop 28% of all pairsSmell alikemoderateCooked together9,210 recipes
Shared aroma: (e)-2-octenal (fatty, green).
-
Potato + eggtop 29% of all pairsSmell alikemoderateCooked together4,978 recipes
Shared aroma: (e)-2-octenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Potatoes
- Once mashed through a sieve, they form a smooth, thick base that carries the dressing.
- Eggs
- Pounded yolks add richness and help bind the oil and vinegar into a thicker dressing.
- Mustard
- Its natural emulsifiers help hold the oil and vinegar together instead of separating.
The step that matters
Adding the oil. Oil should be added gradually while mixing so it breaks into tiny droplets that stay suspended. Adding it all at once can make the dressing separate and look greasy.
Swap the potato
How well each one fits the dish's main ingredients (egg, mustard):
- Horseradishfits better
- Chivefits better
- Shallotfits better
- Potatothe original
Fit is the average pairing score against egg, mustard. 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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