Why it works: Parsley and carrot 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 ↓
Roasted Ham
Ingredients
Directions
Prepare the ham
Soak the ham in cold water overnight.
Trim the ham and remove the bone with a knife.
Tie a broad tape around the ham to keep its shape.
Place the ham in a large pan with onions, parsley, bay leaves, and white wine. Cover and let it marinate for 24 hours.
Roast and glaze
Roast the ham, basting it with the marinate for 4-5 hours.
Remove the skin and sprinkle the ham with grated bread crumbs before it's done.
Simmer the bone and trimmings until they form a jelly, then strain it.
After roasting, remove the tape and glaze the ham with the jelly using a brush.
Serve with the marinate underneath.
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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Parsley + carrottop 1% of all pairsSmell alikestrongCooked together8,053 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Onion + potatotop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Potato + carrottop 4% of all pairsSmell alikestrongCooked together3,107 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
-
Parsley + potatotop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Onion + carrottop 6% of all pairsSmell alikemoderateCooked together21,601 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Ham
- Forms the main body of the dish and carries the flavour of the marinade and glaze.
- White wine
- Adds acidity and aroma to the marinade, helping to flavour the meat.
- Grated bread crumbs
- Form a crisp, browned crust on the surface during roasting.
- Boiled potatoes, finely grated
- Add body and help bind the surface coating.
- Sliced onions
- Add aroma and savoury sweetness to the marinade.
The step that matters
Basting during the long roast. Four to five hours of roasting can dry the outside of the ham. Regular basting with the marinade keeps the surface moist and builds flavour, while the fat and sugars in the liquid help the exterior brown.
Swap the onion
How well each one fits the dish's main ingredients (ham, parsley, white wine, bread, potato, carrot):
- Shallotfits about as well
- Leekfits about as well
- Parsnipfits about as well
- Onionthe original
Fit is the average pairing score against ham, parsley, white wine, bread, potato, carrot. 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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