Why it works: Onion and potato are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Braised Leg of Mutton
Ingredients
Directions
Braise the mutton
Line the bottom of a thick iron kettle or stewpan with a few slices of bacon.
Place the sliced carrots, onions, and savory herbs over the bacon.
Put the leg of mutton on top, cover with more bacon, and pour in ½ pint of water.
Cover tightly and stew gently for 4 hours, basting occasionally with its own juices.
Season with salt and pepper when the meat begins to become tender.
Make the gravy
Strain the gravy.
Thicken the strained gravy with 1 tablespoon of flour until brown.
Fry and serve
Fry the potatoes in butter until light brown.
Pour some gravy over the meat.
Serve the remaining gravy in a tureen.
Garnish the dish with potatoes cut like olives.
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.
-
Onion + potatotop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Carrot + potatotop 4% of all pairsSmell alikestrongCooked together3,107 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
-
Carrot + peppertop 6% of all pairsSmell alikestrongCooked together14,555 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Carrot + oniontop 6% of all pairsSmell alikemoderateCooked together21,601 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Potato + olivetop 7% of all pairsSmell alikemoderateCooked together6,458 recipes
Shared aroma: 2-undecenal (sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Leg of mutton
- Is the main meat that becomes tender through long, gentle stewing.
- Bacon
- Its fat bastes the meat and flavours the braising liquid as it cooks.
- Carrots
- Sweetness and aroma as they soften and flavour the juices beneath the meat.
- Onions
- Build savoury depth and sweetness as they cook down in the braising liquid.
- Flour
- Thickens the strained gravy and helps it brown.
The step that matters
Stew gently and cover tightly. Low, steady heat under a tight lid breaks down tough connective tissue slowly. Boiling hard toughens muscle fibres and dries the meat, so the liquid should only simmer.
Swap the onion
How well each one fits the dish's main ingredients (mutton, carrot, pepper, flour, butter, potato, olive):
- Capsicumfits better
- Spinachfits about as well
- Tomatofits about as well
- Onionthe original
Fit is the average pairing score against mutton, carrot, pepper, flour, butter, potato, olive. 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.
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.
Mutton Broth292 recipes
Potato Croquettes255 recipes
Carrot Soup134 recipes
Potato Rolls78 recipes