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
Cook
Cook the mashed potatoes, onion, and celery in boiling water for 30 minutes.
Rub the mixture through a colander.
Return the mixture to the heat.
Finish and serve
Add the milk and flour, stirring to thicken.
Season with pepper and salt, then serve.
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).
-
Celery + peppertop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Potato + celerytop 7% of all pairsSmell alikemoderateCooked together2,047 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Onion + celerytop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Mashed potatoes
- Provide the starchy base that gives the puree its body and smooth texture.
- Flour
- Thickens the milk mixture as it heats, giving the puree a fuller consistency.
- Milk
- Adds moisture and richness, loosening the puree to a creamy texture.
- Onion
- Adds savory aroma and depth as it softens in the cooking water.
The step that matters
Adding the milk and flour. Flour needs to be stirred in while the mixture heats so it dissolves evenly and thickens without lumps. Stirring continuously helps starch granules swell uniformly.
Swap the celery
How well each one fits the dish's main ingredients (potato, onion, milk, butter, flour, pepper):
- Parsleyfits better
- Thymefits better
- Garlicfits better
- Celerythe original
Fit is the average pairing score against potato, onion, milk, butter, flour, pepper. 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
The 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.
Potato Croquettes255 recipes
Cream of Celery Soup113 recipes
Potato Rolls78 recipes
Potato Chips53 recipes