Why it works: Pepper and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Scotch Haggis
Ingredients
Directions
Prepare the paunch
Soak the sheep’s paunch in salt water for several hours.
Turn the paunch inside out and wash thoroughly.
Wash the pluck.
Cook the offal
Cover the liver with cold water.
Boil the liver for about 1½ hours.
After 1 hour, add the heart and lights.
Chop half the liver into medium-sized pieces.
Finely chop the remaining liver, heart, and lights.
Fill and cook
Mix all chopped ingredients with oatmeal, suet, onions, salt, pepper, nutmeg, lemon juice, and stock.
Fill the paunch with the mixture.
Sew the paunch up, leaving space for the oatmeal to swell.
Place the haggis in boiling water.
Cook gently for about 3 hours.
Prick the haggis occasionally to allow air to escape.
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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Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Nutmeg + lemontop 5% of all pairsSmell alikestrongCooked together11,318 recipes
Shared aroma: beta-phellandrene (minty, terpene).
-
Beef + oniontop 7% of all pairsSmell alikemoderateCooked together17,092 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pepper + nutmegtop 7% of all pairsSmell alikestrongCooked together13,015 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Beef + peppertop 10% of all pairsSmell alikemoderateCooked together18,971 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 liquid and swells, giving the haggis its body and texture.
- Beef suet
- Adds fat that keeps the filling moist and rich as it cooks.
- Sheep’s paunch
- Acts as the casing that holds the filling together during cooking.
- Liver (in the method)
- Provides savoury, meaty flavour and a soft, rich texture to the filling.
- Spanish onions
- Add sweetness and savoury depth to the filling as they cook.
The step that matters
Leaving room in the paunch. Oatmeal swells as it absorbs liquid and fat melts during cooking. If the paunch is packed too tightly it can burst, so space must be left before sewing it shut.
Swap the onion
How well each one fits the dish's main ingredients (beef, pepper, nutmeg, lemon):
- Spinachfits better
- Carrotfits better
- Capsicumfits better
- Onionthe original
Fit is the average pairing score against beef, pepper, nutmeg, lemon. 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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