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 and water for several hours.
Turn it inside out and wash thoroughly in several waters.
Wash the pluck.
Make the filling
Cover the liver with cold water and boil for 1½ hours.
After 1 hour, add the heart and lights.
Chop half the liver. Finely chop the remaining liver, heart, and lights.
Mix the chopped liver, heart, lights, oatmeal, onions, salt, pepper, nutmeg, lemon juice, and stock.
Fill and cook
Turn the mixture into the paunch.
Sew up the opening, leaving space for the oatmeal to swell.
Put the haggis into boiling water.
Cook gently for about 3 hours.
Prick it occasionally with a needle during the first hour 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.
-
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 during cooking, giving the haggis a firm, crumbly body.
- 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 while it cooks.
- Spanish onions
- Add sweetness and moisture to the filling as they soften.
- Stock or gravy
- Adds moisture and savoury flavour to the filling.
The step that matters
Leave space for the oatmeal to swell. Oatmeal absorbs liquid and expands as it cooks. If the paunch is packed tight, it can split or burst, so room must be left before sewing it closed.
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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