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Scotch Haggis

A traditional Scottish dish made by stuffing a sheep's paunch with a mixture of beef suet, oatmeal, onions, and spices, then boiled.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 9 ingredients
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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 offal

  1. Soak the sheep's paunch in salt water for several hours, then turn it inside out and wash thoroughly.

  2. Wash the pluck, cover the liver with cold water, and boil for 1 hour.

  3. After 30 minutes, add the heart and lights.

  4. Chop half the liver and finely chop the remaining liver, heart, and lights.

Fill and cook

  1. Mix the chopped liver, heart, and lights with oatmeal, onions, salt, pepper, nutmeg, lemon juice, and stock.

  2. Fill the paunch with the mixture, sew it up, leaving space for the oatmeal to swell.

  3. Place the haggis in boiling water and cook gently for about 3 hours, pricking it occasionally during the first hour to allow air to escape.

Recipe from a historical cookbook (Internet Archive).

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.

  1. Pepper + lemontop 3% of all pairs
    Smell alikestrong
    Cooked together27,047 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  2. Nutmeg + lemontop 5% of all pairs
    Smell alikestrong
    Cooked together11,318 recipes

    Shared aroma: beta-phellandrene (minty, terpene).

  3. Beef + oniontop 7% of all pairs
    Smell alikemoderate
    Cooked together17,092 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  4. Pepper + nutmegtop 7% of all pairs
    Smell alikestrong
    Cooked together13,015 recipes

    Shared aroma: 4'-methylacetophenone (bitter almond).

  5. Beef + peppertop 10% of all pairs
    Smell alikemoderate
    Cooked 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 stock and fat and swells during cooking, giving the filling its body.
Beef suet
Adds fat that keeps the filling moist and rich as it cooks.
Liver (in the method)
Provides the main savoury, meaty flavour and firm texture of the filling.
Spanish onions
Add sweetness and moisture to the filling as they soften.
Stock or gravy
Adds moisture and savoury depth so the filling stays soft.

The step that matters

Leaving room in the paunch for the oatmeal to swell. Oatmeal absorbs liquid and expands as it cooks. If the paunch is packed too tightly, it can burst during boiling, so space must be left for the filling to grow.

Swap the onion

How well each one fits the dish's main ingredients (beef, pepper, nutmeg, lemon):

  1. Spinachfits better
  2. Carrotfits better
  3. Capsicumfits better
  4. 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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