Why it works: Onion and celery are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 18,518 recipes. Both carry guaiacol, which smells smoky, sweet. The science ↓
Oatmeal Soup
Ingredients
Directions
In a pot, combine the cold cooked oatmeal, grated onion, minced celery tops, and coarse sea salt.
Cover and boil slowly for 15 minutes.
Add the chopped nut meats and press the mixture through a sieve.
Return the strained mixture to the pot and bring to a boil.
Add water or nut milk to achieve the desired consistency.
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.
-
Onion + celerytop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Onion + meattop 17% of all pairsSmell alikelowCooked together6,364 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Meat + milktop 18% of all pairsSmell alikemoderateCooked together2,703 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
-
Celery + meattop 18% of all pairsSmell alikelowCooked together1,880 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Onion + milktop 20% of all pairsSmell alikemoderateCooked together13,418 recipes
Shared aroma: hexanal (green, grassy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Cold cooked oatmeal
- Forms the body of the soup and thickens it as it cooks.
- Chopped nut meats
- Add richness and fat, giving the soup a fuller texture.
- Grated onion
- Adds savory aroma and a mild sharpness to the base.
Swap the celery
How well each one fits the dish's main ingredients (onion, meat, milk):
- Garlicfits better
- Thymefits about as well
- Celerythe original
- Cuminfits about as well
Fit is the average pairing score against onion, meat, milk. 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.
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.

Cream of Celery Soup113 recipes
Meat Croquettes52 recipes
Meatballs37 recipes
Mince Meat37 recipes