Why it works: Pepper and onion 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 ↓
Poached Eggs, Spanish Style
Ingredients
Directions
Prepare
Heat an earthen dish slowly and melt the butter.
Add salt, pepper, and minced onion (or herbs).
Cook the eggs
Drop in the eggs one at a time without stirring.
Let them brown a little, then carefully turn to brown the other side.
Serve
Serve in the same dish as hot as possible.
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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Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
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Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Butter + peppertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Pepper + eggtop 33% of all pairsSmell alikelowCooked together50,580 recipes
Shared aroma: 2-nonenal (fatty, green).
Pepper and egg barely smell alike, yet cooks put them together in 50,580 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Set in the hot dish to form the main body of the dish.
- Butter
- Adds fat and richness and helps the eggs brown in the dish.
- Onion
- Adds savoury aroma and flavour to the butter in the dish.
The step that matters
Turning the eggs. Turn the eggs carefully once the underside has browned a little. Pressing or breaking the yolk spoils the look and the runny centre, and the eggs keep cooking from residual heat after they leave the pan.
Swap the onion
How well each one fits the dish's main ingredients (butter, pepper, egg):
- Capsicumfits better
- Asparagusfits better
- Chivefits better
- Onionthe original
Fit is the average pairing score against butter, pepper, egg. 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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