Why it works: Olive and tomato are a kitchen classic. They rank in the top 1% of all ingredient pairs, and cooks put them together in 15,539 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
Swiss Eggs
Ingredients
Directions
The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat the oven to 350°F (175°C).
Grease the bottom of a baking dish with olive oil.
Sprinkle grated cheese over the oil.
Bake and serve
Carefully break the eggs onto the cheese, avoiding breaking the yolks.
Season the eggs with coarse sea salt.
Pour a little cream over the eggs and sprinkle with more grated cheese.
Bake for about 15 minutes.
Serve with tomato sauce.
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.
-
Olive + tomatotop 1% of all pairsSmell alikemoderateCooked together15,539 recipes
Shared aroma: 3-hexenal (apple, fruity).
-
Cream + saucetop 9% of all pairsSmell alikemoderateCooked together4,787 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Olive + cheesetop 11% of all pairsSmell alikemoderateCooked together3,802 recipes
Shared aroma: methyl 2-methylbutyrate (apple, fatty).
-
Cheese + tomatotop 13% of all pairsSmell alikemoderateCooked together2,896 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Tomato + saucetop 15% of all pairsSmell alikelowCooked together5,469 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Set to a tender custard-like texture as they bake, forming the main body of the dish.
- Grated cheese
- Melts and browns on top while adding savory richness and a salty flavor.
- Cream
- Adds moisture and richness, helping the eggs stay soft rather than dry.
The step that matters
Carefully break the eggs onto the cheese. Keeping the yolks intact matters because a broken yolk spreads into the whites and changes the look and texture of the finished eggs. Gentle handling keeps each yolk whole and centered.
Swap the tomato
How well each one fits the dish's main ingredients (olive, cheese, egg, cream, sauce):
- Mustardfits about as well
- Tomatothe original
- Capsicumfits about as well
- Spinachfits about as well
Fit is the average pairing score against olive, cheese, egg, cream, 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