Why it works: Celery and pepper match in chemistry and in kitchens. They rank in the top 5% of all ingredient pairs, and cooks put them together in 16,012 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Simple Method of Making Barley Broth
Ingredients
Directions
Prepare the barley broth
Wash the barley in cold water.
Add the barley and sliced onions to 5 quarts of water.
Boil gently for 1 hour.
Pour the mixture into a pan.
Make the broth
In a saucepan, melt the beef or mutton dripping or fat bacon.
Stir in the oatmeal until it forms a paste.
Gradually add the barley broth by spoonfuls.
Stir until it boils.
Mix the pounded celery or cress seed, cayenne, and black pepper with a little soup.
Add the mixture to the pot.
Simmer for 15 minutes.
Add salt to taste.
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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Celery + peppertop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Barley + celerytop 6% of all pairsSmell alikemoderateCooked together571 recipes
Shared aroma: 2-methoxy-4-vinylphenol (clove, smoky).
-
Onion + beeftop 7% of all pairsSmell alikemoderateCooked together17,092 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Barley + beeftop 7% of all pairsSmell alikemoderateCooked together458 recipes
Shared aroma: 2-furfurylthiol (coffee, roasted).
-
Onion + celerytop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Scotch barley
- Softens during long simmering, thickening the broth and giving it body and a chewy texture.
- Oatmeal
- Forms a paste with the fat and thickens the broth as it cooks, adding body.
- Beef or mutton dripping
- Adds fat and richness, carrying flavour and giving a savoury, full mouthfeel.
- Sliced onions
- Release sweetness and savoury depth into the broth as they simmer.
The step that matters
Forming the oatmeal paste and adding the barley liquid gradually. Stirring the oatmeal into melted fat first coats the starch granules, and adding liquid slowly in spoonfuls keeps the mixture smooth. Adding it all at once can leave lumps that do not dissolve evenly into the broth.
Swap the onion
How well each one fits the dish's main ingredients (barley, beef, celery, pepper):
- Carrotfits better
- Leekfits better
- Turnipfits better
- Onionthe original
Fit is the average pairing score against barley, beef, 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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