Why it works: Onion and pepper are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Ham or Chicken Croquettes
Ingredients
Directions
Prepare
In a bowl, combine the ground meat, ground onion, salt, pepper, cracker crumbs, beaten egg, and cold milk, then mix until well combined and moist.
Shape the mixture into balls.
Roll each ball in additional cracker crumbs.
Fry
Fry in deep fat until golden brown.
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.
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Ham + eggtop 17% of all pairsSmell alikemoderateCooked together4,526 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Ham + oniontop 18% of all pairsSmell alikelowCooked together4,159 recipes
Shared aroma: gamma-nonanolactone (coconut, sweet).
-
Egg + milktop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, green).
-
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
- Cooked ham or chicken
- Provides the main filling and savory meaty flavor.
- Cracker crumbs
- Absorb moisture and bind the mixture, and form a crisp outer coating.
- Large egg
- Binds the mixture together so the balls hold their shape.
- Cold milk
- Adds moisture so the mixture stays soft inside.
The step that matters
Mix until well combined and moist. The mixture needs enough moisture and binding so the balls hold together without cracking. Too dry, they crumble in the fat; too wet, they are hard to shape and may burst while frying.
Swap the onion
How well each one fits the dish's main ingredients (ham, pepper, egg, milk):
- Capsicumfits better
- Asparagusfits better
- Potatofits better
- Onionthe original
Fit is the average pairing score against ham, pepper, egg, 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.
Tomato Soup526 recipes
Brown Bread461 recipes
Mutton Broth292 recipes
Yorkshire Pudding264 recipes