Why it works: Beef and pepper are a kitchen classic. They rank in the top 10% of all ingredient pairs, and cooks put them together in 18,971 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Ox Tail Soup
Ingredients
Directions
Prepare
Prepare stock from beef or bones and vegetables, then cool and remove fat.
Soak the ox tails in water, then cut into joints.
Place the joints back in the same water with ham and simmer until tender.
Make the soup
Strain the stock and add the liquid from the ox tails, along with the best pieces of the tails.
Stir in port wine, pepper, salt, and ketchup.
Thicken the soup with flour or cornflour.
Serve
Before serving, add the fried forcemeat balls.
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.
-
Beef + peppertop 10% of all pairsSmell alikemoderateCooked together18,971 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Ketchup + flourtop 13% of all pairsSmell alikemoderateCooked together2,435 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Beef + port winetop 13% of all pairsSmell alikemoderateCooked together626 recipes
Shared aroma: sotolon (curry, maple).
-
Ham + beeftop 15% of all pairsSmell alikemoderateCooked together1,729 recipes
Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).
-
Port wine + ketchuptop 15% of all pairsSmell alikelowCooked together425 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Ox tails
- Release gelatin and meaty flavour into the broth as they simmer until tender.
- Stock
- Forms the savoury liquid base that carries all the other flavours.
- Ham
- Adds salty, smoky depth to the simmering broth.
- Port wine
- Adds sweetness and fruity depth to the finished soup.
- Flour or cornflour
- Thickens the soup by swelling with heat to give body.
The step that matters
Thicken the soup with flour or cornflour. Starch must be added to the hot liquid and brought to a simmer so the granules swell and thicken it; if it is added to cold liquid or not cooked through, it can clump or taste raw.
“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.
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Roast Beef211 recipes
Beef Loaf175 recipes
Corned Beef87 recipes
Beef Broth67 recipes