Why it works: Leek and potato work together. They rank in the top 6% of all ingredient pairs, and cooks put them together in 30 recipes. Both carry 1-octen-3-ol, which smells mushroom, earthy. The science ↓
Leek Soup
Ingredients
Directions
Trim and wash the leeks, then cut them into pieces 1 inch long and ½ inch thick.
Melt the butter in a stewpan and cook the leeks until they are light brown.
Add the warm water, pepper, and salt, then bring to a boil and simmer for 20 minutes.
Slice the French roll into ¼ inch thick slices, divide each slice into four parts, and place in a tureen.
Prepare a milk liaison and add it to the soup before serving.
For potato and leek soup, add the sliced potatoes after the pepper and salt, and boil gently until the potatoes are soft enough to puree.
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.
Photo for illustrative purposes only · Contact us to use it
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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Leek + potatotop 6% of all pairsSmell alikemoderateCooked together30 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
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Pepper + potatotop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Leek + peppertop 12% of all pairsSmell alikemoderateCooked together965 recipes
Shared aroma: coumarin (sweet, hay).
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Butter + potatotop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Leek + buttertop 15% of all pairsSmell alikemoderateCooked together848 recipes
Shared aroma: trans-2-hexenal (green, leafy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
Swap the leek
The recipe marks leek as optional. How well each one fits the dish's main ingredients (butter, pepper, potato):
- Capsicumfits better
- Chivefits better
- Onionfits better
- Leekthe original
Fit is the average pairing score against butter, pepper, potato. Candidates are from the same food group and used in at least 100 recipes.
More leek soup recipes
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