Why it works: Butter and egg match in chemistry and in kitchens. They rank in the top 8% of all ingredient pairs, and 118,511 recipes mention both. Both carry nonanal, which smells fat, citrus. The science ↓
The recipe
Ingredients
Contains: egg, milk (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Prepare
Pick over the beef and chop it finely.
In a bowl, combine the beef, tomatoes, cheese, onion juice, cinnamon, and cayenne.
Cook
Melt the butter in a pan over medium heat.
Add the mixture to the pan and heat through.
Once heated, add the beaten eggs and stir continuously.
Cook until the eggs reach a creamy consistency, scraping the bottom of the pan.
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 aroma chemistry they share, and how many recipes mention both.
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Butter + eggtop 8% of all pairsAroma overlapstrongMentioned together118,511 recipes
Shared aroma: nonanal (fat, citrus).
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Beef + oniontop 3% of all pairsAroma overlapmoderateMentioned together17,091 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Beef + tomatotop 3% of all pairsAroma overlapstrongMentioned together5,445 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Cheese + buttertop 3% of all pairsAroma overlapstrongMentioned together7,955 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Tomato + oniontop 4% of all pairsAroma overlapstrongMentioned together20,622 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Set into a soft, creamy structure as they cook and stir.
- Smoked dried beef
- Adds a salty, smoky flavour that carries the dish.
- Tomatoes
- Add moisture and a mild acidity that brightens the eggs.
- Butter
- Adds richness and helps keep the eggs from sticking to the pan.
- Grated cheese
- Melts into the mixture, adding savoury depth and body.
The step that matters
Cook the eggs with constant stirring. Eggs set quickly once heated. Stirring keeps the curds small and tender, while scraping the pan bottom prevents sticking and overcooked patches.
Flavor stand-ins for the cinnamon
How well each one fits the dish's main ingredients (beef, tomato, cheese, onion, butter, egg):
- Garlicbetter flavor fit
- Thymebetter flavor fit
- Pepperbetter flavor fit
- Cinnamonthe original
Fit is the average pairing score against beef, tomato, cheese, onion, butter, egg. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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