Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Beef Soup
Ingredients
Directions
Prepare the stock
Boil the soup bone a day before you need it.
Skim off the grease the next day.
Make the soup
Melt the butter.
Add spices, brandy, butter mixed with flour, vermicelli, and grated carrot.
Serve
Mash the hard-boiled eggs smooth and place them in a tureen.
Pour the soup over the mashed eggs.
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 + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + carrottop 13% of all pairsSmell alikemoderateCooked together8,029 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Brandy + buttertop 15% of all pairsSmell alikemoderateCooked together5,127 recipes
Shared aroma: ethyl octanoate (fruity, wine).
-
Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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
- Soup bone
- Simmers into the stock that forms the body of the soup.
- Brandy
- Adds a sharp, aromatic note that rounds out the broth.
- Butter
- Rubbed into browned flour to thicken the soup and add richness.
- Vermicelli
- Adds thin pasta strands that soften in the hot broth.
- Hard-boiled eggs
- Mashed smooth to add body and richness beneath the soup.
The step that matters
Skim off the grease the next day. Fat that rises and sets on a chilled stock can make the soup greasy and heavy, so removing it cleanly keeps the broth clear and light.
Swap the carrot
How well each one fits the dish's main ingredients (brandy, butter, flour, egg):
- Shallotfits better
- Chivefits better
- Arrowrootfits better
- Carrotthe original
Fit is the average pairing score against brandy, butter, flour, egg. 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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