Why it works: Flour and butter 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 ↓
Lobster Soup
Ingredients
Directions
Prepare the stock
Remove the meat from the shells of the boiled lobsters and set the spawn aside.
Beat the fins and small claws in a mortar, then place them in a saucepan with the water.
Simmer until the flavor is extracted, then strain the liquid.
Finish the soup
In a mortar, beat the spawn with flour and butter, then rub it through a sieve into the strained soup.
Simmer the soup without boiling for 10 minutes to preserve the color.
Squeeze in the lemon juice and add a little essence of anchovies.
Make and serve the force-meat balls
For the force-meat balls, mix minced lobster spawn, French roll crumb, egg, and pounded mace, then roll in flour.
Serve the force-meat balls in the soup.
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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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Lobster + meattop 14% of all pairsSmell alikelowCooked together909 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Butter + meattop 16% of all pairsSmell alikemoderateCooked together7,594 recipes
Shared aroma: guaiacol (smoky, sweet).
Flour and butter 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
- Hen lobsters
- Provide the main flavor and the meat and spawn used in the soup and force-meat balls.
- Butter
- Enriches the spawn mixture, adding richness and smoothness to the soup.
- Flour
- Thickens the spawn mixture slightly so it blends smoothly into the soup.
- Egg
- Binds the force-meat balls so they hold their shape.
- French roll crumb
- Adds bulk and softness to the force-meat balls, helping bind the mixture.
The step that matters
Simmer the soup without boiling. Boiling can break down the delicate color and texture of the lobster-based soup, so a gentle simmer keeps it bright and smooth.
Swap the mace
How well each one fits the dish's main ingredients (lobster, flour, butter, lemon, meat, egg):
- Capersfits better
- Parsleyfits better
- Nutmegfits better
- Macethe original
Fit is the average pairing score against lobster, flour, butter, lemon, meat, 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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