Why it works: Parsley and celery 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 ↓
Spanish Omelet
Ingredients
Directions
The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare the filling
Chop the tomato, green pepper, onion, parsley, and celery finely and pour into a skillet.
Heat the mixture on the stove until warmed through.
Make the omelette
In a bowl, beat the eggs with the powdered sugar until dissolved.
Add a few drops of your chosen flavoring and beat until stiff froth forms.
Stir the vegetable mixture into the omelette as soon as it is added to the pan.
Pour the egg mixture into a buttered pan and smooth the top with a knife.
Bake and serve
Dust the top with sugar and bake in a hot oven at 400°F (200°C) until set.
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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Parsley + celerytop 1% of all pairsSmell alikestrongCooked together6,810 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Tomato + celerytop 4% of all pairsSmell alikemoderateCooked together3,377 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Pepper + celerytop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Onion + celerytop 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
- Eggs
- Beaten eggs set into the omelette structure as they cook and bake.
- Powdered sugar
- Dissolves into the beaten eggs, adding sweetness and helping the omelette brown on top.
- Tomato
- Adds moisture and acidity to the vegetable filling.
- Green pepper
- Adds bulk, texture and a fresh, slightly bitter flavor to the filling.
- Onion
- Adds savory flavor and aroma to the vegetable filling.
The step that matters
Beat the eggs with the sugar until dissolved and frothy. Beating incorporates air into the eggs, which expands during baking and gives a light texture. Undissolved sugar can leave the omelette grainy, so it should be fully dissolved before the eggs are poured into the pan.
Swap the onion
How well each one fits the dish's main ingredients (tomato, pepper, parsley, celery, egg, sugar, butter):
- Capsicumfits better
- Carrotfits better
- Potatofits better
- Onionthe original
Fit is the average pairing score against tomato, pepper, parsley, celery, egg, sugar, butter. 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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