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
Make the potato base
Boil the onion, bay leaf, and celery in the milk for 30 minutes.
Add the peeled, boiled, and mashed potatoes, mixing thoroughly.
Melt the butter in a small saucepan, then gradually add the flour, stirring until smooth.
Slowly pour the butter and flour mixture into the hot milk and potato mixture.
Boil for a few minutes, then add seasoning and thin with hot milk.
Finish and serve
Just before serving, stir in the beaten eggs and whipped cream.
Strain through a fine wire strainer into a hot soup tureen and 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).
-
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).
-
Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Potatoes
- Break down into mashed body, giving the puree its thick, smooth texture.
- Milk
- Forms the liquid base that the potatoes are cooked and mashed into.
- Flour
- Thickens the mixture with butter, helping it hold a smooth, body-rich consistency.
- Eggs
- Add richness and help set and thicken the puree when stirred in at the end.
- Whipped cream
- Adds richness and a silky, smooth mouthfeel to the finished puree.
- Butter
- Adds fat and flavor, and combines with flour to form a thickening roux.
The step that matters
Adding the beaten eggs and whipped cream. Eggs thicken when heated, so adding them to a very hot mixture can scramble them. Stirring them in just before serving, off a hard boil, keeps the puree smooth and silky.
Swap the celery
How well each one fits the dish's main ingredients (milk, potato, onion, flour, butter, cream, egg):
- Nutmegfits better
- Garlicfits better
- Capersfits better
- Celerythe original
Fit is the average pairing score against milk, potato, onion, flour, butter, cream, egg. 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