Why it works: Onion and pepper are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Favourite Steak Stew
Ingredients
Directions
Simmer
In a pot, cover the steak pieces with water.
Simmer slowly for 2½ hours.
If desired, add the finely sliced onion.
Finish and serve
A little before serving, stir in the sauce, butter, thickening, 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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Onion + peppertop 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).
-
Sauce + buttertop 15% of all pairsSmell alikelowCooked together15,338 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
-
Onion + flourtop 17% of all pairsSmell alikemoderateCooked together32,460 recipes
Shared aroma: isobutyraldehyde (malty, green).
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
- Steak
- Provides the main meat, which becomes tender during the long, slow simmer.
- Thickening
- Starch swells when heated in the liquid, thickening the stew into a sauce.
- Butter
- Adds richness and a smooth, rounded mouthfeel to the finished sauce.
- Onion
- Softens and turns mildly sweet during simmering, adding flavor to the stew.
The step that matters
Adding the thickening. Starch thickeners such as flour or cornstarch need to be stirred in smoothly and heated so the starch swells and thickens the liquid. Stirring in dry thickener without enough heat can leave lumps or a thin sauce.
Swap the onion
The recipe marks onion as optional. How well each one fits the dish's main ingredients (sauce, butter, flour, pepper):
- Shallotfits better
- Capsicumfits better
- Chivefits better
- Onionthe original
Fit is the average pairing score against sauce, butter, flour, 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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