Why it works: Pepper and parsley match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Boiled Potatoes
Ingredients
Directions
Prepare
Scrape the new potatoes instead of peeling them.
Soak new potatoes in cold water for 4-5 hours before cooking.
Boil and dry
Boil water with a small handful of coarse sea salt.
Add the potatoes to the boiling water and cook until they show a tendency to crack.
Pour off the water and let the potatoes stand uncovered near the fire to dry.
Serve
For mashed potatoes, break the boiled potatoes into a paste and season with butter, salt, and cream or milk.
If there are leftovers, press them down in a dish, refrigerate overnight, then cut into slices and fry in butter with pepper and chopped 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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Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Potato + parsleytop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Potato + buttertop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- New potatoes
- Provide the starchy body of the dish, which softens when boiled and breaks into a paste when mashed.
- Butter
- Adds richness and flavour, and browns when the leftover slices are fried.
- Cream or milk
- Adds moisture and creaminess to mashed potatoes.
The step that matters
Cooking until they show a tendency to crack. Stop at this point because potatoes that are overcooked will fall apart and become waterlogged. Starch granules swell as they cook, so timing determines whether the potatoes hold their shape or turn mushy.
Swap the potato
How well each one fits the dish's main ingredients (butter, cream, pepper, parsley):
- Potatothe original
- Carrotfits about as well
- Spinachfits about as well
- Shallotfits less well
Fit is the average pairing score against butter, cream, pepper, parsley. 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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