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 ↓
Potato Salad
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare the potatoes
Boil and mash the potatoes until fine.
Season with butter, pepper, salt, and sweet cream.
Make the dressing
Chop the whites of the hard-boiled eggs and mash the yolks.
Mix the yolks with mustard, sugar, pepper, and vinegar to moisten.
Layer and bake
In a flat pan, layer mashed potatoes and spoon the salad dressing over them.
Repeat layers, finishing with mashed potatoes on top.
Smooth the top and place in the oven at 400°F (200°C) to brown.
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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Potato + mustardtop 7% of all pairsSmell alikemoderateCooked together1,340 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Pepper + mustardtop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
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, once mashed, give it a soft, creamy body.
- Butter
- Adds richness and fat, giving the mashed potato a smoother mouthfeel.
- Sweet cream
- Adds moisture and richness so the mashed potato spreads and stays soft.
- Hard boiled eggs
- Provide body and savory richness to the dressing from the mashed yolks and chopped whites.
- Made mustard
- Adds sharp, pungent flavor that cuts through the richness of the eggs and butter.
- Vinegar
- Adds acidity that brightens the flavor and balances the sweetness and richness.
The step that matters
Smooth the top and brown in the oven. Browning depends on surface dryness and heat; the top must be evenly smoothed so it browns uniformly rather than steaming or burning in patches. Too little heat leaves it pale, while too much can scorch the sugar and dairy at the surface.
Swap the potato
How well each one fits the dish's main ingredients (butter, pepper, cream, egg, mustard, sugar, vinegar):
- Horseradishfits better
- Capsicumfits better
- Shallotfits better
- Potatothe original
Fit is the average pairing score against butter, pepper, cream, egg, mustard, sugar, 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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