Why it works: Beef and onion are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 17,092 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Beef Steak Cooked in a Frying-Pan
Ingredients
Directions
Prepare the pan
Grease a frying pan with a piece of fat and heat it over moderate heat.
Optionally, rub the pan with a piece of onion before cooking.
Cook the steak
Place the steak in the pan and brown it gradually, avoiding drying or burning.
Do not pierce the steak with a fork to keep the juices inside.
Check doneness by pressing; it should not feel spongy.
If the steak is lean, add a piece of butter on top while cooking.
Make the sauce
After cooking, pour water into the pan and stir to combine with the drippings.
Add flour to thicken the sauce, then mix in ketchup, pepper, and salt.
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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Beef + oniontop 7% of all pairsSmell alikemoderateCooked together17,092 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Beef + peppertop 10% of all pairsSmell alikemoderateCooked together18,971 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + ketchuptop 13% of all pairsSmell alikemoderateCooked together2,435 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Butter and flour barely smell alike, yet cooks put them together in 124,287 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
- Beef steak
- Browns in the pan and provides the main meat and juices for the dish.
- Flour
- Thickens the pan sauce as it combines with the liquid and drippings.
- Ketchup
- Adds sweetness and acidity to the pan sauce.
- Butter
- Adds fat and richness to a lean steak while it cooks.
The step that matters
Browning the steak gradually. Moderate heat browns the surface through the Maillard reaction without burning it, while the interior stays juicy. Piercing the meat lets juices escape, and pressing it lets you judge doneness by firmness.
Swap the onion
The recipe marks onion as optional. How well each one fits the dish's main ingredients (beef, butter, flour, ketchup, pepper):
- Capsicumfits better
- Shallotfits about as well
- Chivefits about as well
- Onionthe original
Fit is the average pairing score against beef, butter, flour, ketchup, pepper. 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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