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 ↓
Tomatoes and Egg Toast
Ingredients
Directions
Make the tomato base
Peel and slice the tomatoes.
In a saucepan, melt the butter and fry the tomatoes for a few minutes.
Let the mixture cool.
Rub the mixture through a sieve.
Return the pulp to the saucepan.
Cook the egg topping
Break in the eggs.
Add the seasonings, sugar, and vinegar.
Stir over gentle heat until it begins to set.
Serve
Spoon the tomato mixture onto the center of each piece of buttered toast.
Arrange the toast on a dish, garnish with parsley, and serve hot.
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).
-
Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 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).
-
Pepper + vinegartop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Butter + parsleytop 15% of all pairsSmell alikemoderateCooked together28,563 recipes
Shared aroma: trans-2-hexenal (green, leafy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Tomatoes
- Provide the main body and flavor of the topping once cooked and strained.
- Eggs
- Set when gently heated, thickening the tomato mixture into a spoonable topping.
- Butter
- Adds richness and helps fry the tomatoes, carrying flavor.
- Vinegar
- Adds a sharp acidity that brightens the sweet tomato and rich egg.
The step that matters
Stir over gentle heat until it begins to set. Eggs set at low temperatures; high heat can scramble them into lumps and curdle the smooth tomato mixture.
Swap the tomato
How well each one fits the dish's main ingredients (egg, pepper, butter, vinegar, sugar, parsley):
- Capsicumfits better
- Shallotfits better
- Mustardfits better
- Tomatothe original
Fit is the average pairing score against egg, pepper, butter, vinegar, sugar, parsley. 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