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 ↓
Tough Beef Steak
Ingredients
Directions
Make the soup
Heat a large kettle on the stove until hot, but not scorching.
Add the beef and turn it frequently until well browned.
Pour in the water and let it simmer slowly for about 30 minutes.
Remove the beef and season the soup with salt, pepper, catsup, onions, and tomato if desired.
Thicken the soup with flour.
Serve on toast
Chop the beef finely, season with butter, salt, and pepper, and serve on slices of toast.
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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Pepper + tomatotop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Beef + tomatotop 8% of all pairsSmell alikemoderateCooked together5,448 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + tomatotop 8% of all pairsSmell alikemoderateCooked together20,633 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).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Beef
- Browning builds savory flavor, and the beef supplies the main protein of the dish.
- Flour
- Starch thickens the soup as it heats, giving it body.
- Butter
- Adds richness and fat to the chopped beef served on toast.
- Onions
- Add aromatic sweetness and savory depth to the soup.
- Tomato
- Adds acidity and brightness to the soup.
The step that matters
Browning the beef. Beef must be turned often until well browned, not scorched. Browning through the Maillard reaction builds deep savory flavor, while scorching produces bitter, burnt notes that carry into the soup.
Swap the tomato
How well each one fits the dish's main ingredients (beef, pepper, onion, flour, butter):
- Potatofits better
- Chivefits better
- Leekfits better
- Tomatothe original
Fit is the average pairing score against beef, pepper, onion, flour, butter. 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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