Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Barley Cream Soup
Ingredients
Directions
Prepare the soup
Wash the barley well.
Combine barley, onion, cinnamon, mace, and chicken broth in a saucepan.
Bring to a boil, then reduce heat and simmer for 5 hours.
Strain the mixture through a fine sieve and return to the saucepan.
Finish and serve
Mix in butter and boiling milk or cream.
Season with salt and pepper.
Beat the egg yolks with milk, then stir into the soup.
Heat gently without boiling, then serve in a tureen with toast or croutons.
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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Onion + chickentop 8% of all pairsSmell alikemoderateCooked together17,814 recipes
Shared aroma: gamma-nonanolactone (coconut, sweet).
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Barley + cinnamontop 9% of all pairsSmell alikestrongCooked together127 recipes
Shared aroma: cuminaldehyde (Spicy, cumin).
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Cinnamon + peppertop 9% of all pairsSmell alikestrongCooked together4,890 recipes
Shared aroma: methyl cinnamate (strawberry).
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Cinnamon + macetop 10% of all pairsSmell alikemoderateCooked together3,611 recipes
Shared aroma: methyleugenol (clove, spice).
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 it simmers and gives the soup its body.
- Egg yolks
- Enrich and thicken the soup when gently heated, giving a smooth, creamy texture.
- Butter
- Adds richness and a silky mouthfeel to the finished soup.
- Milk or cream
- Adds creaminess and softness, mellowing the broth's flavour.
- Chicken broth
- Forms the savoury liquid base that the barley cooks in.
The step that matters
Heat gently without boiling. Egg yolks in the soup will curdle and turn grainy if they get too hot. Keeping the soup below a boil lets the yolks thicken it smoothly.
Swap the mace
How well each one fits the dish's main ingredients (barley, onion, cinnamon, chicken, butter, milk, pepper):
- Nutmegfits better
- Thymefits better
- Clovefits better
- Macethe original
Fit is the average pairing score against barley, onion, cinnamon, chicken, butter, milk, 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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