Why it works: Lemon and pepper 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 ↓
An English Haggis
Ingredients
Directions
Prepare the filling
Chop the heart, tongue, and liver of the sheep.
Combine with fat bacon, chopped anchovies, grated roll, lemon peel, pepper, salt, and beaten eggs. Mix well and add wine.
Cook
Butter a mold and fill it with the mixture.
Cook until set.
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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Lemon + peppertop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Lemon + winetop 13% of all pairsSmell alikelowCooked together6,157 recipes
Shared aroma: decanal (soap, orange peel).
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Pepper + winetop 18% of all pairsSmell alikemoderateCooked together8,066 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Lemon + eggtop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
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Liver + peppertop 21% of all pairsSmell alikemoderateCooked together2,375 recipes
Shared aroma: 2-nonenal (fatty, green).
Lemon and egg barely smell alike, yet cooks put them together in 44,316 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
- Eggs
- Bind the mixture and help it set into a firm, sliceable texture.
- Crumb of a penny roll
- Absorbs moisture and adds body, giving the filling a lighter, crumbly texture.
- Fat bacon
- Adds fat that keeps the filling moist and carries flavor during cooking.
- Heart of sheep
- Forms the main body of the filling, giving it its meaty texture.
The step that matters
Cook until set. Eggs set when heated past their coagulation point, so the filling firms into a sliceable mass. Cooking too briefly leaves it loose and wet, while overcooking can make it dry and rubbery.
“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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