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 ↓
Scotch Haggis
Ingredients
Directions
Prepare
Soak the sheep's stomach in salt overnight.
Parboil the pluck, then mince it finely with the suet and onions.
Mix the minced mixture with oatmeal, pepper, and salt.
Fill and boil
Fill the stomach with the mixture and sew it up, making sure the bag is not too full to prevent bursting.
Prick the bag all over with a skewer before boiling.
Place the bag in boiling water, pricking it several times while boiling.
Boil for three hours.
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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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 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
- Oatmeal
- Absorbs fat and juices, giving the haggis its crumbly, moist body.
- Suet
- Adds fat that keeps the filling moist and rich during boiling.
- Onions
- Add sweetness and aroma to the savoury filling.
- Sheep's stomach (bag) and the pluck
- The stomach bag encloses the filling, and the pluck supplies the meaty base.
The step that matters
Leave room in the bag and prick it before boiling. Oatmeal and meat swell as they cook, so an overfilled bag can burst. Pricking the casing lets steam escape, reducing the risk of splitting.
“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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