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 ↓
Hard-Boiled Eggs on Toast
Ingredients
Directions
Prepare
Grate the pressed beef, bacon, or ham.
Chop the hard-boiled eggs into small pieces.
Make the sauce
Make the white or brown sauce and flavor it with tomato purée and spiced pepper.
Add the chopped eggs to the sauce and heat thoroughly.
Serve
Fry the bread slices until golden brown.
Pour the sauce over the fried bread and dust with grated beef before serving.
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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Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + beeftop 8% of all pairsSmell alikemoderateCooked together5,448 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + breadtop 10% of all pairsSmell alikemoderateCooked together1,013 recipes
Shared aroma: 2-nonenal (fatty, green).
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Pepper + beeftop 10% of all pairsSmell alikemoderateCooked together18,971 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Coffee + beeftop 11% of all pairsSmell alikemoderateCooked together213 recipes
Shared aroma: 2-methyl-3-(methyldithio)furan (thiamin, meat).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Hard-boiled eggs
- Provide the main filling, bulking the sauce with set egg texture and protein.
- White or brown sauce
- Forms the creamy base that binds the chopped eggs and coats the bread.
- Tomato purée
- Adds concentrated tomato flavor and a little acidity and color to the sauce.
- Pressed beef, bacon, or ham
- Adds savory, salty meaty flavor to the filling and garnish.
The step that matters
Add the chopped eggs to the sauce and heat thoroughly. The eggs and sauce must be heated through so the filling is hot and safe, but prolonged boiling can make the sauce separate or the egg whites toughen and turn rubbery.
Swap the tomato
How well each one fits the dish's main ingredients (egg, coffee, sauce, pepper, bread, beef):
- Capsicumfits about as well
- Tomatothe original
- Asparagusfits about as well
- Potatofits about as well
Fit is the average pairing score against egg, coffee, sauce, pepper, bread, beef. 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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