Why it works: Potato and onion 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 ↓
A Baked Irish Stew
Ingredients
Directions
The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
In a brown upright Nottingham jar, layer mutton or beef, sliced potatoes, and mild onions alternately.
Add water and seasoning to the jar.
Cover the top with whole peeled potatoes.
Bake and serve
Bake in a moderate oven at 350°F (175°C) until the top potatoes are well cooked and browned 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.
-
Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Mutton + oniontop 18% of all pairsSmell alikelowCooked together4,531 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Mutton + potatotop 19% of all pairsSmell alikemoderateCooked together293 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
- Mutton or beef
- Provides the meat, which becomes tender and flavourful as it cooks slowly in the sealed jar.
- Sliced potatoes
- Layered through the jar, they soften and thicken the stew as their starch releases into the liquid.
- Mild onions
- Soften and turn sweet during baking, adding mellow flavour to the stew.
- Whole potatoes
- Form a top layer that cooks through and browns in the oven.
The step that matters
Covering the top with whole potatoes. The top layer shields the meat and sliced vegetables from direct heat, so they cook through without drying. Browning the top potatoes relies on the oven heat reaching them evenly.
Swap the potato
How well each one fits the dish's main ingredients (mutton, onion):
- Leekfits about as well
- Potatothe original
- Turnipfits less well
- Chivefits less well
Fit is the average pairing score against mutton, onion. 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
Potato Rolls78 recipes
Haricot Mutton59 recipes