Why it works: Potato and onion are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Potato Puree
Ingredients
Directions
Prepare
Scrub the potatoes clean in cold water.
Peel the potatoes and cut them into thin slices.
Wash and peel the onion.
Wash the celery.
Cook the vegetables
Melt the butter in a stewpan.
Add the sliced potatoes, onion, and celery to the stewpan.
Cook the vegetables over low heat for 5 minutes.
Pour 1 pint of white stock over the vegetables and stir frequently.
Boil gently until the vegetables are fully cooked.
Finish and serve
Strain the mixture through a fine sieve into a basin, pressing with a wooden spoon.
Return the puree to the stewpan.
Add salt to taste and ½ cup of cream, stirring until it boils.
Serve in a hot soup tureen with fried bread croutons.
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.
-
Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Potato + celerytop 7% of all pairsSmell alikemoderateCooked together2,047 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Onion + celerytop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
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
- Potatoes
- Form the bulk of the puree and, once cooked and sieved, give it a smooth, thick body.
- Butter
- Melts to coat the vegetables, adding richness and carrying flavour before the stock goes in.
- Cream
- Added at the end to enrich the puree, adding smoothness and a softer, creamier mouthfeel.
- White stock
- Cooks the vegetables until tender and supplies the liquid that becomes the puree's body.
- Onion
- Adds savoury depth and aroma as it softens in the butter and stock.
The step that matters
Pressing the cooked vegetables through the sieve. Starch from cooked potatoes turns gluey if overworked, so the puree should be pressed gently and only until smooth. Cooking the vegetables fully first lets them break down easily, giving a smooth texture without forcing harsh or sticky results.
Swap the celery
How well each one fits the dish's main ingredients (potato, butter, cream, onion):
- Garlicfits better
- Parsleyfits about as well
- Thymefits about as well
- Celerythe original
Fit is the average pairing score against potato, butter, cream, onion. 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.
More potato puree recipes
You might also like
Potato Croquettes255 recipes
Cream of Celery Soup113 recipes
Potato Rolls78 recipes
Potato Chips53 recipesThe free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.