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 Soup
Ingredients
Directions
Make the soup
Boil the potatoes in water until soft.
Pour off the water and add fresh boiling water.
Add salt, fat, celery root, parsley root, and onion.
Strain the soup through a colander.
Finish and serve
Season with salt and pepper to taste.
Add croutons 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.
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.
-
Celery + parsleytop 1% of all pairsSmell alikestrongCooked together6,810 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).
-
Potato + celerytop 7% of all pairsSmell alikemoderateCooked together2,047 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Beef + oniontop 7% of all pairsSmell alikemoderateCooked together17,092 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Potatoes
- Break down when boiled to thicken the soup and give it body.
- Fat
- Adds richness and flavor carried from the roast beef or tongue drippings.
- Celery root
- Contributes a savory, earthy aroma that flavors the broth.
- Parsley root
- Adds a mild, herbal aroma and subtle earthy flavor to the broth.
- Onion
- Adds savory depth and aroma as it cooks into the broth.
The step that matters
Strain the soup through a colander. Starchy potatoes that have broken down must be pressed through the strainer to create a smooth texture; leftover lumps or fibrous pieces make the soup feel grainy.
Swap the parsley
How well each one fits the dish's main ingredients (potato, beef, celery, onion):
- Garlicfits about as well
- Thymefits about as well
- Parsleythe original
- Cuminfits about as well
Fit is the average pairing score against potato, beef, celery, 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 soup recipes
You might also like
Potato Croquettes255 recipes
Roast Beef211 recipes
Beef Loaf175 recipes
Cream of Celery Soup113 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.