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 ↓
Oatmeal Soup, with Ham
Ingredients
Directions
Prepare
Wash the oats with cold water.
Bring the oats to a boil with 2-3 quarts of water.
Add salt, celery, parsley, onions, and potatoes.
Wash the bacon or ham and parboil it in water for 10 minutes.
Simmer and finish
Add the parboiled bacon or ham to the soup and boil for about 2 hours.
Mash and strain the soup.
Remove the grease, mix it with flour, and gradually add the strained soup.
Let it boil for a few minutes.
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).
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Onion + potatotop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Parsley + potatotop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Celery + potatotop 7% of all pairsSmell alikemoderateCooked together2,047 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Celery + oniontop 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
- Steel cut oats
- Thicken the soup as they cook and give it a hearty, porridge-like body.
- Potatoes
- Break down during cooking and mash into the soup, adding body and thickness.
- Bacon or ham with fat
- Releases fat and savory flavor into the water as it simmers for a long time.
- Flour (in the method)
- Combined with the skimmed fat to form a roux that thickens the strained soup.
The step that matters
Adding the flour mixture to the strained soup. Flour clumps if dumped in directly. Mixing it with fat first and adding the liquid gradually lets the starch disperse evenly, so the soup thickens smoothly without lumps.
Swap the onion
How well each one fits the dish's main ingredients (oats, celery, parsley, potato, ham):
- Carrotfits better
- Leekfits better
- Turnipfits better
- Onionthe original
Fit is the average pairing score against oats, celery, parsley, potato, ham. 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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