Why it works: Turnip and capers match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 145 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Ox-tails
Ingredients
Directions
Prepare the stew
Brown the oxtail pieces with butter and a large onion in a stewpan.
Peel the button onions.
Boil the button onions in 3 pints of water for 15-20 minutes.
Set the boiled button onions aside.
Pour the boiling water from the button onions over the oxtails, adding enough boiling water to cover them.
Add the sliced carrots.
Simmer for 20 minutes.
Add the turnips.
Ensure the oxtails and vegetables are not stewed too fast or too much.
Make the gravy
Once tender, strain the gravy through a sieve.
Skim off the fat from the strained gravy.
Melt 1 ounce of butter in a separate pan.
Stir in enough flour to thicken the gravy.
Gradually pour the strained gravy into the pan.
Stir until it boils.
Let it simmer gently.
Serve
Arrange the oxtails around a serving dish.
Place the vegetables in the center.
Pour the gravy over.
Warm the button onions in boiling water.
Place the warmed button onions around the dish just before serving.
Optionally, add minced gherkins or capers to the dish.
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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Turnip + caperstop 1% of all pairsSmell alikestrongCooked together145 recipes
Shared aroma: coumarin (sweet, hay).
-
Carrot + turniptop 1% of all pairsSmell alikestrongCooked together8,002 recipes
Shared aroma: coumarin (sweet, hay).
-
Onion + turniptop 5% of all pairsSmell alikestrongCooked together7,585 recipes
Shared aroma: coumarin (sweet, hay).
-
Onion + carrottop 6% of all pairsSmell alikemoderateCooked together21,601 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Flour + caperstop 6% of all pairsSmell alikestrongCooked together1,024 recipes
Shared aroma: isobutyraldehyde (malty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Oxtails
- Slow simmering breaks down connective tissue, making the meat tender and rich in body.
- Butter
- Browning the oxtails adds savory flavor, and melted butter forms the base for the thickening roux.
- Flour
- Starch thickens the strained gravy as it heats, giving it a smooth, coating body.
- Carrots
- Add sweetness and soft texture as they cook in the stew.
- Turnips
- Add mild sweetness and a tender texture to the stew.
The step that matters
Keep the stew at a gentle simmer. Boiling vigorously toughens meat and breaks up vegetables, while a gentle simmer lets collagen slowly convert to gelatin for tender oxtail and a clear gravy.
Swap the capers
The recipe marks capers as optional. How well each one fits the dish's main ingredients (butter, onion, carrot, turnip, flour):
- Parsleyfits about as well
- Capersthe original
- Celeryfits about as well
- Thymefits less well
Fit is the average pairing score against butter, onion, carrot, turnip, flour. 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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