Why it works: Parsley and watercress match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 469 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Potato Salad
Ingredients
Directions
Prepare
Cut the potatoes into dice.
Cook the potatoes until tender but not broken.
Strain the potatoes and allow them to cool.
Assemble
Mix the cooled potatoes with the dressing and parsley.
Garnish with the watercress.
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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Parsley + watercresstop 2% of all pairsSmell alikestrongCooked together469 recipes
Shared aroma: coumarin (sweet, hay).
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Potato + watercresstop 4% of all pairsSmell alikemoderateCooked together170 recipes
Shared aroma: coumarin (sweet, hay).
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Potato + parsleytop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Potato + creamtop 17% of all pairsSmell alikelowCooked together2,481 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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Cream + watercresstop 26% of all pairsSmell alikemoderateCooked together211 recipes
Shared aroma: octanal (fat, soap).
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, providing starchy body and a tender texture once cooked.
- Cream salad dressing
- Adds moisture and richness, coating the potato pieces and carrying the flavour.
- Parsley
- Contributes fresh, herbal aroma that brightens the creamy dressing.
The step that matters
Cook the potatoes until tender but not broken. Overcooked potatoes break down and turn mushy, while undercooked pieces stay hard and grainy. Cooking to just tender keeps the dice intact and holds its shape when tossed with dressing.
Swap the parsley
How well each one fits the dish's main ingredients (potato, cream, watercress):
- Capersfits better
- Tarragonfits about as well
- Garlicfits about as well
- Parsleythe original
Fit is the average pairing score against potato, cream, watercress. 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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