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 and Salad Dressing
Ingredients
Directions
Prepare
Cut the cold boiled potatoes into fancy shapes, about ¼ inch thick.
Mix the potatoes with flakes of cold boiled fish.
Make the dressing
In a saucepan, combine melted butter or salad oil, cream or milk, salt, pepper, and ground mustard.
Add vinegar and boil the mixture well.
Remove from heat and stir in the beaten eggs for five minutes until well combined.
Let the dressing cool completely before pouring it over the salad.
Serve
Garnish with slices of pickled cucumbers, beetroot, hard boiled eggs, and fresh parsley.
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).
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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Pepper + mustardtop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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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
- Forms the bulk of the salad and holds its shape when cut into pieces.
- Fish
- Adds flaky texture and the main savory flavor to the salad.
- Eggs
- Thicken the dressing as they set gently in the warm mixture, helping it cling to the salad.
- Butter or salad oil
- Adds fat that makes the dressing rich and smooth on the palate.
- Cream or milk
- Adds moisture and creaminess, softening the sharpness of the vinegar.
- Vinegar
- Adds acidity that brightens the dressing and balances its richness.
The step that matters
Stir the beaten eggs in off the heat. Egg proteins thicken the dressing only when heated gently. If the mixture is still hot and boiling, the eggs can scramble into lumps, so removing it from heat first keeps the dressing smooth.
Swap the mustard
How well each one fits the dish's main ingredients (potato, fish, butter, cream, pepper, coffee, vinegar):
- Capsicumfits better
- Onionfits about as well
- Asparagusfits about as well
- Mustardthe original
Fit is the average pairing score against potato, fish, butter, cream, pepper, coffee, 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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