Why it works: Sauce and ketchup match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,099 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓
Rabbit or Old Hare Soup
Ingredients
Directions
Prepare the base
Fry the onion in the dripping until lightly browned.
Add the pieces of rabbit and cover with cold water.
Cook very slowly for 4 hours, or until the meat is tender.
Season with salt and pepper, then let cool.
Strain and finish
Skim off the fat and strain through a coarse cloth.
Return the liquid to the fire and bring to a boil.
Thicken with the roux, then add the ketchup, sherry, lemon juice, and a pinch of ground allspice if desired.
If the soup is not brown enough, color with a little caramel.
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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Sauce + ketchuptop 1% of all pairsSmell alikestrongCooked together1,099 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Celery + parsleytop 1% of all pairsSmell alikestrongCooked together6,810 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Celery + tomatotop 4% of all pairsSmell alikemoderateCooked together3,377 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Rabbit + porktop 6% of all pairsSmell alikemoderateCooked together832 recipes
Shared aroma: decanal (soap, orange peel).
-
Onion + celerytop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Rabbit
- Provides the main meat, which becomes tender through long, slow simmering.
- Onion
- Browns in the dripping to build a savory, sweet base for the soup.
- Brown roux
- Thickens the liquid so the soup has body.
- Brown sherry
- Adds acidity and a rounded, aromatic depth to the finished soup.
- Dripping
- Carries the onion's browning and adds fat for flavor.
The step that matters
Cook very slowly for 4 hours. Low, gentle heat lets the connective tissue in the rabbit break down slowly, so the meat turns tender without drying out or toughening. Boiling hard would make the meat tough and cloud the broth.
Swap the parsley
How well each one fits the dish's main ingredients (rabbit, pork, onion, celery, sauce, tomato, ketchup):
- Garlicfits better
- Thymefits better
- Capersfits about as well
- Parsleythe original
Fit is the average pairing score against rabbit, pork, onion, celery, sauce, tomato, ketchup. 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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