Why it works: Celery and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 6,810 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Potato Puree
Ingredients
Directions
Cook the base
Combine mashed potatoes, chopped onion, chopped celery, and boiling water in a pot, and season with salt and pepper.
Cook gently for 30 minutes, stirring often to prevent scorching.
Strain and thicken
Strain the mixture.
Rub it through a soup strainer back into the pot.
Add parsley and floured butter, stirring until it boils.
Finish with eggs
Heat milk in another vessel.
Pour heated milk over beaten eggs and mix well.
Add egg mixture to the pot.
Stir over heat for 1 minute.
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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Celery + parsleytop 1% of all pairsSmell alikestrongCooked together6,810 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Potato + parsleytop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Celery + peppertop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Mashed potatoes
- Provides the body and smooth base that the puree is built on.
- Eggs
- Set with gentle heat to enrich and thicken the puree.
- Butter
- Adds fat for richness and a smooth mouthfeel.
- Flour
- Thickens the butter and liquid through starch when heated.
- Onion
- Adds savoury aroma as it cooks into the base.
- Celery
- Adds subtle savoury aroma to the cooking liquid.
The step that matters
Adding the egg mixture. Egg proteins set with heat and can curdle or scramble if the mixture gets too hot or boils. Keeping the heat gentle while stirring produces a smooth, evenly thickened puree.
Swap the onion
How well each one fits the dish's main ingredients (potato, butter, flour, egg, celery, pepper, parsley):
- Carrotfits better
- Chivefits better
- Leekfits better
- Onionthe original
Fit is the average pairing score against potato, butter, flour, egg, celery, 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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