Why it works: Clove and pepper match in chemistry and in kitchens. They rank in the top 5% of all ingredient pairs, and cooks put them together in 17,451 recipes. Both carry ethyl octanoate, which smells fruity, wine. The science ↓
Thick Ox Tail Soup
Ingredients
Directions
Prepare the tail
Wipe the ox tail and cut it into joints.
Fry the joints in 2 tablespoons of butter.
Add the sliced onion and fry until pale brown.
Add the stock, cloves, and peppercorns.
Stew gently for 4 hours.
Remove the tail.
Strain the stock.
Make the soup
Melt the remaining butter in the pan.
Add flour and glaze.
Gradually stir in the stock.
Add pepper, salt, mushroom ketchup, and gravy coloring.
Boil for 5 minutes.
Add pieces of the tail and the port wine.
Serve.
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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Clove + peppertop 5% of all pairsSmell alikestrongCooked together17,451 recipes
Shared aroma: ethyl octanoate (fruity, wine).
-
Butter + mushroomtop 7% of all pairsSmell alikemoderateCooked together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
-
Onion + mushroomtop 10% of all pairsSmell alikemoderateCooked together10,626 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Clove + mushroomtop 10% of all pairsSmell alikemoderateCooked together2,663 recipes
Shared aroma: alpha-pinene (pine, turpentine).
-
Port wine + mushroomtop 10% of all pairsSmell alikemoderateCooked together570 recipes
Shared aroma: guaiacol (smoky, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Ox tail
- Gives the soup its meaty body and rich flavor as it stews slowly.
- Flour
- Thickens the stock into a smooth, lightly body-filled soup when cooked with butter.
- Butter
- Fat that carries flavor and helps brown the joints and onion before stewing.
- Onion
- Adds savory sweetness and aroma as it browns in the fat.
- Port wine
- Adds sweetness, depth and a fruity note to the finished soup.
The step that matters
Gradually stir in the stock. Adding liquid slowly to the flour and butter mixture lets the starch disperse evenly, preventing lumps and giving a smooth, well-thickened soup.
Swap the onion
How well each one fits the dish's main ingredients (butter, port wine, clove, pepper, flour, mushroom, ketchup):
- Shallotfits better
- Capsicumfits better
- Carrotfits better
- Onionthe original
Fit is the average pairing score against butter, port wine, clove, pepper, 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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