Why it works: Onion and pepper are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Irish Stew
Ingredients
Directions
Brown the mutton
Cut the neck of mutton into pieces two and one half or three inches square.
Put the mutton pieces into a saucepan with one tablespoonful of butter, and let them brown; stir frequently so they do not burn.
Simmer and finish
When browned, add enough water to cover them well, and two or three onions cut into pieces.
Cover closely and let simmer for two hours.
Then add more water if necessary, some parboiled potatoes cut in two, and a few slices of carrot, salt, and pepper to taste; cover and let cook for one hour more.
Add a teaspoonful of Worcestershire sauce.
Ensure the gravy is thick; avoid using too much water.
The potatoes should be very soft, but not broken.
Nutrition, whole recipe (rough)
What these numbers assume: 5 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Butter | 1 tbsp (14g) | 102 |
| Onion | 1 medium (110g) | 44 |
| Soy Sauce | 1 tbsp (15ml) | 9 |
| Black Pepper | 1 tsp ground (2.3g) | 6 |
| Salt | 1 tsp (6g) | 0 |
One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.
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. See the original page.
Photo for illustrative purposes only · Contact us to use it
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 + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + saucetop 15% of all pairsSmell alikelowCooked together15,338 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
-
Sauce + oniontop 19% of all pairsSmell alikelowCooked together10,474 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Butter + peppertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Butter and sauce barely smell alike, yet cooks put them together in 15,338 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Mutton (in the method)
- Provides the main meat, whose slow simmering turns it tender and flavours the broth.
- Butter
- Browns the mutton pieces, building savoury flavour on the surface of the meat.
- Onions
- Soften during simmering, adding sweetness and body to the gravy.
- Potatoes (in the method)
- Soften during the final cooking and help thicken the gravy as their starch releases.
The step that matters
Keep the gravy thick by limiting the water. Too much water dilutes the broth and weakens its flavour, while starch from the potatoes and meat juices needs a concentrated liquid to thicken the gravy properly.
Swap the onion
How well each one fits the dish's main ingredients (butter, sauce, pepper):
- Capsicumfits better
- Tomatofits about as well
- Mustardfits about as well
- Onionthe original
Fit is the average pairing score against butter, sauce, pepper. 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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