Why it works: Potato and onion are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Potato Salad
Ingredients
Directions
Prepare
Slice the potatoes and onion.
Chop 2 hard boiled eggs.
Sprinkle with salt and pepper.
Slice 4 hard boiled eggs.
Place sliced eggs on top.
Garnish with celery or parsley.
Dress and rest
Heat vinegar, butter, and sugar until boiling.
Pour the hot mixture over the potatoes.
Cover the dish.
Let it sit in a warm place for 1-2 hours before serving.
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.
-
Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pepper + celerytop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Potato + celerytop 7% of all pairsSmell alikemoderateCooked together2,047 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Onion + celerytop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Potatoes
- Form the bulk of the salad and absorb the hot vinegar dressing as they rest.
- Vinegar
- Adds acidity that sharpens the flavour and balances the sweetness.
- Sugar
- Adds sweetness that offsets the sharpness of the vinegar.
- Butter
- Adds richness and fat that softens the dressing's sharpness.
- Hard boiled eggs
- Add firm texture and richness to the salad.
The step that matters
Pour the hot mixture over the potatoes. Pouring the dressing while it is hot lets the warm potatoes absorb it evenly. Cold dressing would coat only the surface, so the flavour would stay uneven.
Swap the celery
How well each one fits the dish's main ingredients (potato, onion, egg, pepper, vinegar, butter, sugar):
- Garlicfits better
- Parsleyfits better
- Tarragonfits better
- Celerythe original
Fit is the average pairing score against potato, onion, egg, pepper, vinegar, butter, sugar. 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.
More potato salad recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Potato Croquettes255 recipes
Cream of Celery Soup113 recipes
Potato Rolls78 recipes
Potato Chips53 recipes