Why it works: Shallot and mushroom are a kitchen classic. They rank in the top 4% of all ingredient pairs, and cooks put them together in 1,982 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Brown Sauces
Ingredients
Directions
In a pan, fry the diced bacon or ham in the butter until slightly cooked.
Add the diced vegetables and fry for 5 minutes.
Stir in the flour and cook slowly until golden brown.
Add the stock, tomato puree, seasoning, and herbs, then simmer gently for 1 hour, skimming frequently.
Finally, add the sherry, bring to a boil, skim, and strain through a fine sieve.
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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Shallot + mushroomtop 4% of all pairsSmell alikemoderateCooked together1,982 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Carrot + tomatotop 6% of all pairsSmell alikestrongCooked together3,606 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Flour + shallottop 6% of all pairsSmell alikestrongCooked together2,081 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Carrot + oniontop 6% of all pairsSmell alikemoderateCooked together21,601 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Mushroom + tomatotop 7% of all pairsSmell alikemoderateCooked together2,719 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Carries the frying of the bacon and vegetables and, with the flour, forms the base roux.
- Flour
- Thickens the sauce when cooked in fat and stock, giving it body.
- Brown stock
- Forms the liquid base that gives the sauce its main flavour and body.
- Ham or bacon
- Adds smoky, savoury flavour that carries through the long simmer.
- Tomato
- Adds acidity and colour, balancing the richness of the stock and roux.
- Sherry
- Adds aromatic sweetness and acidity at the end, brightening the sauce.
The step that matters
Cooking the flour until golden brown. Cooking the flour in fat browns it and develops nutty flavour while it thickens. Undercooked flour tastes raw and pasty, while overcooked flour loses thickening power and turns bitter.
Swap the tomato
How well each one fits the dish's main ingredients (butter, flour, carrot, onion, shallot, ham, mushroom):
- Leekfits better
- Chivefits better
- Turnipfits better
- Tomatothe original
Fit is the average pairing score against butter, flour, carrot, onion, shallot, ham, mushroom. 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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