Why it works: Carrot and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 8,053 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Ox Heel Soup
Ingredients
Directions
Prepare the stock
Cut the meat off the boiled heels into bite-sized pieces and set the cut meat aside.
Place the trimmings and bones in a stew pan with water and the unboiled heel cut into quarters.
Add onions, turnips, carrots, eschalots, savory, and parsley.
Cover the pot.
Simmer gently for at least 7 hours.
Skim off fat and scum regularly.
Strain the liquid through a sieve into a clean stew pan.
Finish the soup
Melt butter in the stew pan.
Stir in the strained liquid.
Add the reserved meat.
Add mushroom ketchup.
Add wine and season with salt.
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 + parsleytop 1% of all pairsSmell alikestrongCooked together8,053 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Lemon + parsleytop 1% of all pairsSmell alikestrongCooked together14,037 recipes
Shared aroma: beta-phellandrene (minty, terpene).
-
Turnip + carrottop 1% of all pairsSmell alikestrongCooked together8,002 recipes
Shared aroma: coumarin (sweet, hay).
-
Turnip + parsleytop 2% of all pairsSmell alikestrongCooked together2,842 recipes
Shared aroma: coumarin (sweet, hay).
-
Onion + turniptop 5% of all pairsSmell alikestrongCooked together7,585 recipes
Shared aroma: coumarin (sweet, hay).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Ox heel
- Releases gelatin and collagen into the broth, giving body and a rich mouthfeel.
- Onions
- Add sweetness and aromatic depth as they soften and release their flavour into the stock.
- Carrots
- Contribute natural sweetness and body to the broth as they cook down over the long simmer.
- Butter
- Adds fat for richness and a smooth, rounded mouthfeel to the finished soup.
- Wine
- Adds acidity and aromatic depth that brightens the long-cooked broth.
The step that matters
Skim off fat and scum regularly. Fat and foam rise to the surface during a long simmer. Removing them keeps the broth clear and stops it tasting greasy or muddy.
Swap the lemon
How well each one fits the dish's main ingredients (onion, turnip, carrot, parsley, butter, mushroom, ketchup):
- Lemonthe original
- Limefits about as well
- Avocadofits less well
- Red currantfits less well
Fit is the average pairing score against onion, turnip, carrot, parsley, butter, 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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