Why it works: Butter and bread are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 27,232 recipes. Both carry delta-decalactone, which smells sweet, creamy. The science ↓
Milk Soup
Ingredients
Directions
Make the soup
Heat the stock until hot.
In a bowl, mix butter and flour, adding a little milk to make a smooth paste.
Thicken the broth with the paste, boiling for 15 to 20 minutes, then season to taste.
Finish and serve
In a separate bowl, beat the egg with a little milk or water, then stir it into the soup after removing it from the heat.
Serve with crackers or pour over squares of fried bread.
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 + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Milk + breadtop 11% of all pairsSmell alikemoderateCooked together11,466 recipes
Shared aroma: 2-undecenal (sweet).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Egg + breadtop 13% of all pairsSmell alikemoderateCooked together22,662 recipes
Shared aroma: (e)-2-octenal (fatty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 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
- Milk
- Forms the liquid base and adds richness and a creamy body to the soup.
- Butter
- Adds fat and flavor, and helps the flour blend into a smooth paste.
- Flour
- Its starch swells when heated, thickening the liquid into a smooth soup.
- Egg
- Beaten egg stirred in off the heat adds richness and slight thickening.
The step that matters
Stir in the egg off the heat. Egg proteins set when hot and can curdle into strands if the soup is boiling. Removing the pan from the heat before stirring in the beaten egg keeps it smooth and evenly thickened.
“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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