Why it works: Tomato and pepper are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 17,923 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Eggs Portuguese
Ingredients
Directions
Prepare the tomatoes
Peel and seed the tomatoes, then chop them into small pieces.
Cook and finish
In a saucepan, combine the chopped tomatoes, salt, pepper, and butter.
Cook the mixture over medium heat for 10 minutes.
Transfer the tomato mixture into a bag and break the eggs over it.
Cook for an additional 2 minutes.
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.
-
Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
-
Pepper + buttertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Tomato + buttertop 22% of all pairsSmell alikemoderateCooked together6,918 recipes
Shared aroma: 3-hexenal (apple, fruity).
-
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
- Ripe tomatoes
- Provide the moist, slightly acidic base that the eggs cook into.
- Butter
- Adds fat and richness, helping the tomatoes cook into a silky sauce.
- Eggs
- Set as they cook, binding with the tomato mixture to form a soft, creamy dish.
The step that matters
Cooking the eggs in the tomato mixture. Eggs set quickly once heat reaches them, so removing the pan at the right moment keeps them soft and creamy rather than dry and rubbery. Overcooking squeezes out moisture and makes the proteins tight.
Swap the tomato
How well each one fits the dish's main ingredients (pepper, butter, egg):
- Capsicumfits better
- Asparagusfits better
- Chivefits better
- Tomatothe original
Fit is the average pairing score against pepper, butter, 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.
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
Tomato Bisque61 recipes
Cream Tomato Soup28 recipes