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 ↓
Rhubarb Soup
Ingredients
Directions
Prepare the rhubarb
Peel and wash the rhubarb thoroughly.
Blanch the rhubarb in hot water for 3 to 4 minutes, then drain it in a sieve.
Make the soup
In a stewpan, combine the rhubarb, ham, and butter.
Stew gently over low heat until the rhubarb is tender.
Add the consommé and boil for about 15 minutes.
Skim off all the fat.
Stir in the bread crumbs.
Season with salt and cayenne pepper.
Pass the soup through a fine sieve.
Serve
Serve with 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).
-
Ham + breadtop 7% of all pairsSmell alikemoderateCooked together2,536 recipes
Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).
-
Rhubarb + peppertop 15% of all pairsSmell alikemoderateCooked together96 recipes
Shared aroma: methyl cinnamate (strawberry).
-
Ham + buttertop 16% of all pairsSmell alikemoderateCooked together5,475 recipes
Shared aroma: trans-2-decenal (waxy, orange).
-
Bread + peppertop 16% of all pairsSmell alikemoderateCooked together20,964 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Rhubarb
- Provides the tart, bright flavour that defines the soup and softens into a pulp when stewed.
- Butter
- Adds richness and fat, carrying flavour as the rhubarb stews.
- Consommé
- Forms the liquid base of the soup, supplying savoury depth.
- Bread crumbs
- Thicken the soup slightly and add body.
- Lean ham
- Adds savoury, salty flavour to the stewed rhubarb.
The step that matters
Skim off all the fat. Fat from the ham and butter floats on the surface of the hot liquid and can make the soup greasy and heavy on the palate. Removing it before adding the bread crumbs and straining leaves a cleaner, lighter soup.
Swap the rhubarb
How well each one fits the dish's main ingredients (ham, butter, bread, pepper):
- Parsleyfits better
- Thymefits better
- Marjoramfits better
- Rhubarbthe original
Fit is the average pairing score against ham, butter, bread, 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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