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Scotch Broth

A hearty soup made with barley, mutton, carrots, onion, cabbage, parsley, celery, pepper, and sea salt.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 10 ingredients
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Scotch Broth

Why it works: Carrot and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 8,053 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓

Scotch Broth

Ingredients

Directions

Make the broth

  1. Bring 4 quarts of cold water to a boil and skim off any foam.

  2. Add ½ cup of barley and 1 neck of mutton; boil for 30 minutes.

Add vegetables and finish

  1. Skim the surface again and add chopped vegetables: 2 carrots, 1 large onion, 1 small head of cabbage, 1 bunch of parsley, and 1 sprig of celery top.

  2. Season with pepper and coarse sea salt to taste.

  3. Cook the soup for an additional 2 hours.

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.

Photo for illustrative purposes only · Contact us to use it

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. Carrot + parsleytop 1% of all pairs
    Smell alikestrong
    Cooked together8,053 recipes

    Shared aroma: 2,4-decadienal (seaweed).

  2. Carrot + celerytop 1% of all pairs
    Smell alikestrong
    Cooked together10,173 recipes

    Shared aroma: myristicin (spice, warm).

  3. Parsley + celerytop 1% of all pairs
    Smell alikestrong
    Cooked together6,810 recipes

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

  4. Parsley + peppertop 2% of all pairs
    Smell alikestrong
    Cooked together34,122 recipes

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

  5. Celery + peppertop 5% of all pairs
    Smell alikestrong
    Cooked together16,012 recipes

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

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Barley
Thickens the broth as its starch releases during long simmering, giving body to the soup.
Neck of mutton
Releases fat and collagen into the water, adding rich meaty flavour to the broth.
Carrots
Add natural sweetness and colour, and hold their shape through long cooking.
Cabbage
Adds bulk and a mild sweet flavour as it softens in the broth.

The step that matters

Skim the foam at the start and again after adding the vegetables. Foam and scum rising from the meat and vegetables can cloud the broth and carry off-flavours. Removing them keeps the soup clear and clean-tasting.

Swap the onion

How well each one fits the dish's main ingredients (barley, mutton, carrot, cabbage, parsley, celery, pepper):

  1. Turnipfits better
  2. Leekfits better
  3. Parsnipfits better
  4. Onionthe original

Fit is the average pairing score against barley, mutton, carrot, cabbage, parsley, celery, pepper. 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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