Why it works: Carrot and celery match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 10,173 recipes. Both carry myristicin, which smells spice, warm. The science ↓
Clear Ox-tail Soup
Ingredients
Directions
Prepare the stock
Soak the ox tails for 2 hours.
Cut the tails into pieces and simmer in the stock for 3 hours.
If using mushrooms, add them 1 hour before straining.
Strain the soup and clarify it with the egg whites and shells.
Finish and serve
Mix the arrowroot with a little water, add it to the soup, and boil for 2 minutes.
Cut the vegetables into pretty shapes and boil until tender.
Add the vegetables, wine, and small diced meat from the ox tails to the soup just before serving.
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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Carrot + celerytop 1% of all pairsSmell alikestrongCooked together10,173 recipes
Shared aroma: myristicin (spice, warm).
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Mushroom + winetop 8% of all pairsSmell alikemoderateCooked together2,632 recipes
Shared aroma: 2-methoxy-4-propylphenol (allspice, anise).
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Celery + arrowroottop 8% of all pairsSmell alikestrongCooked together114 recipes
Shared aroma: coumarin (sweet, hay).
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Carrot + arrowroottop 8% of all pairsSmell alikestrongCooked together164 recipes
Shared aroma: coumarin (sweet, hay).
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Carrot + mushroomtop 10% of all pairsSmell alikemoderateCooked together2,796 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Ox tails
- Release flavour and gelatin into the stock, giving the soup body and richness.
- Eggs
- Egg whites and shells gather fine particles as they set, clarifying the stock to a clear broth.
- Arrowroot
- Starch that thickens the soup slightly when boiled, giving a lightly silky body.
- Wine
- Adds acidity and aroma that brighten the finished soup.
The step that matters
Clarifying the strained soup with egg whites and shells. The egg whites must be whisked into the cool stock and brought slowly to a simmer without stirring once it starts to rise, so the proteins set into a raft that traps cloudy particles. Boiling hard or stirring breaks the raft and leaves the soup murky.
Swap the arrowroot
How well each one fits the dish's main ingredients (carrot, celery, mushroom, egg, wine):
- Tomatofits better
- Spinachfits better
- Capsicumfits better
- Arrowrootthe original
Fit is the average pairing score against carrot, celery, mushroom, egg, wine. 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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