Why it works: Pepper and parsley 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 ↓
A Spanish Omelet
Ingredients
Directions
Prepare the eggs
Beat the eggs until light.
Add cream, salt, and cayenne pepper.
Stir in the minced green pepper, grated onion, chopped tomato, and minced parsley just before cooking.
Cook and serve
Cook in a pan until set, then fold the omelet.
Invert the pan over a heated platter.
Sprinkle Parmesan cheese on the folded omelet.
Pour tomato sauce, seasoned with onion juice, butter, salt, and sugar, around the omelet 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.
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.
-
Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Pepper + tomatotop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + tomatotop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Tomato + parsleytop 8% of all pairsSmell alikemoderateCooked together5,398 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Tomato + parmesan cheesetop 9% of all pairsSmell alikemoderateCooked together2,490 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Set into the structure of the omelet as they cook, holding the filling together.
- Cream
- Adds moisture and softness, keeping the eggs tender rather than dry.
- Green pepper
- Adds crisp texture and a fresh, vegetal flavor to the filling.
- Tomato
- Adds moisture and acidity to the filling.
- Parmesan cheese
- Adds savory, salty flavor and helps the surface brown lightly.
- Tomato sauce
- Provides a moist, tangy sauce that contrasts with the rich omelet.
The step that matters
Cook in a pan until set, then fold the omelet.. Eggs continue to firm from residual heat after leaving the pan. Removing them while the centre is still slightly moist keeps the omelet tender instead of rubbery.
Swap the onion
How well each one fits the dish's main ingredients (egg, cream, pepper, tomato, parsley, parmesan cheese, sauce):
- Capsicumfits better
- Spinachfits better
- Asparagusfits better
- Onionthe original
Fit is the average pairing score against egg, cream, pepper, tomato, parsley, parmesan cheese, sauce. 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
Cream of Tomato Soup107 recipes
Macaroni and Cheese102 recipes
Tomato Bisque61 recipes