Why it works: Parsley and pepper match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Bread Omelet
Ingredients
Directions
Prepare the mixture
Soften the hard bread in hot water or milk, or in cold water and crumble it.
In a bowl, combine the softened bread, chopped onion, parsley, egg, salt, and pepper.
Cook and serve
Heat bits of suet or beef fat in a frying pan or square baking pan.
Pour the mixture into the pan, cover, and bake for 5 minutes.
Uncover and brown the top, then cut into pieces and serve with meat or gravy.
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.
-
Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Onion + beeftop 7% of all pairsSmell alikemoderateCooked together17,092 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Pepper + beeftop 10% of all pairsSmell alikemoderateCooked together18,971 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Bread + milktop 11% of all pairsSmell alikemoderateCooked together11,466 recipes
Shared aroma: 2-undecenal (sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Hard bread
- Softened bread forms the body of the omelette and holds the egg mixture together.
- Egg
- Egg sets when heated, binding the bread and onion into a firm, sliceable mass.
- Onion
- Chopped onion adds moisture and savory sweetness as it softens during baking.
- Suet or beef fat
- Melted fat coats the pan, helping the bottom brown and adding rich flavor.
Swap the onion
How well each one fits the dish's main ingredients (bread, milk, parsley, egg, pepper, beef):
- Capsicumfits better
- Potatofits better
- Carrotfits better
- Onionthe original
Fit is the average pairing score against bread, milk, parsley, egg, pepper, beef. 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.

Brown Bread461 recipes
Roast Beef211 recipes
Beef Loaf175 recipes
Corned Beef87 recipes