Why it works: Sauce and ketchup match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,099 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓
Fillet of Beef
Ingredients
Directions
The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare the fillet
Lard the fillet.
Place the fillet in a pan with sliced onion, parsley, and bay leaf.
Spread the fillet thickly with butter.
Dissolve salt in boiling water.
Pour the dissolved salt water into the pan.
Bake
Bake at 400°F (200°C) for 30 minutes, basting three or four times.
Make the sauce
Remove the fillet from the pan.
Add 1 tablespoon of butter to the pan and brown the fillet.
Stir in 1 tablespoon of flour and 1 pint of stock.
Strain the mixture after boiling.
Add mushrooms and ketchup.
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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Sauce + ketchuptop 1% of all pairsSmell alikestrongCooked together1,099 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Beef + mushroomtop 4% of all pairsSmell alikemoderateCooked together3,232 recipes
Shared aroma: 2,4-nonadienal (fatty, green).
-
Beef + oniontop 7% of all pairsSmell alikemoderateCooked together17,092 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + mushroomtop 7% of all pairsSmell alikemoderateCooked together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
-
Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Fillet of beef
- Forms the main body of the dish, cooked tender and juicy under butter and basting.
- Butter
- Adds fat and richness, carrying flavour and helping the fillet brown in the pan.
- Flour
- Thickens the stock-based sauce as it cooks, giving it body.
- Stock
- Forms the liquid base of the sauce, adding savoury depth.
- Mushrooms
- Add earthy flavour and texture to the finished sauce.
The step that matters
Browning the fillet in butter before making the sauce. Browning creates flavourful compounds through the Maillard reaction. Removing the fillet and reheating the pan with butter needs enough heat to brown the surface without burning the butter and drippings that form the base of the sauce.
Swap the parsley
How well each one fits the dish's main ingredients (beef, onion, butter, sauce, flour, mushroom, ketchup):
- Capersfits better
- Garlicfits better
- Thymefits about as well
- Parsleythe original
Fit is the average pairing score against beef, onion, butter, sauce, flour, mushroom, ketchup. 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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