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, Fillets Of, Larded
Ingredients
Directions
The book says “a moderately hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare the beef
Cut the beef into round, even-sized fillets about 1 inch thick.
Lard the fillets on one side in close rows.
Cook
Heat 2 oz. of butter in a sauté pan, add the fillets, and fry the underside for 5 minutes.
Transfer the pan to a 400 °F (200 °C) oven and cook for 10 minutes, basting well.
Melt the remaining 1 oz. of butter in a small saucepan and fry the onions until brown.
Just before serving, mix the onions with 2 tablespoons of either Espagnole or demi-glace sauce.
Brush the fillets with glaze.
Serve
Arrange the fillets in a circle on a border of mashed potatoes.
Serve the onions in the center.
Pour the sauce around.
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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Butter + saucetop 15% of all pairsSmell alikelowCooked together15,338 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
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Beef + buttertop 16% of all pairsSmell alikemoderateCooked together10,847 recipes
Shared aroma: 2-furfurylthiol (coffee, roasted).
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Sauce + oniontop 19% of all pairsSmell alikelowCooked together10,474 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Butter and sauce barely smell alike, yet cooks put them together in 15,338 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 fillet
- Forms the main meat; its tender texture is the centerpiece of the dish.
- Larding bacon
- Adds fat and moisture inside the lean fillet, keeping it juicy as it cooks.
- Butter
- Browns the fillets and onions in the pan and adds richness.
- Button onions
- Caramelize when fried until brown, adding sweetness and savory depth.
- Espagnole or demi-glace sauce
- Adds a rich, savory meat flavor and moisture to the plate.
The step that matters
Frying the underside before the oven. Searing the fillet in hot butter builds a browned crust through the Maillard reaction, which adds flavor and color. Searing first also seals the surface so juices stay in during the oven finish.
Swap the onion
How well each one fits the dish's main ingredients (beef, butter, sauce):
- Onionthe original
- Tomatofits about as well
- Potatofits about as well
- Shallotfits less well
Fit is the average pairing score against beef, butter, sauce. 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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