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 ↓
Mock Turtle
Ingredients
Directions
Prepare the head
Cut the calf's head in half and clean it well.
Half boil the head, then remove the meat in square bits.
Break the bones and boil them in veal stock for richness.
Make the soup
Brown some flour to thicken the soup, then add it to the stock.
Bring the soup to a boil, skim it carefully, and add the meat.
Cook until the meat is tender, then add salt, soy sauce, and mushroom ketchup.
Serve
Serve with force-meat balls.
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).
-
Flour + ketchuptop 13% of all pairsSmell alikemoderateCooked together2,435 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Veal + mushroomtop 14% of all pairsSmell alikemoderateCooked together2,446 recipes
Shared aroma: 2,4-nonadienal (fatty, green).
-
Mushroom + meattop 15% of all pairsSmell alikemoderateCooked together1,423 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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Mushroom + ketchuptop 16% of all pairsSmell alikelowCooked together2,225 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Calf's head
- Provides the gelatinous meat and skin that give the soup its body and mouthfeel.
- Veal stock
- Forms the liquid base and carries the savory, meaty flavor of the soup.
- Flour
- Browned and stirred in, it thickens the stock to a smooth, body-rich consistency.
- Soy sauce
- Adds salty, savory depth and a deeper brown color to the finished soup.
- Mushroom ketchup
- Contributes concentrated umami and a dark, savory aroma to the soup.
The step that matters
Skim the soup carefully after it comes to a boil. Impurities and fat rise to the surface as the stock heats. Removing them keeps the soup clear and clean-tasting, so skimming is needed before the meat goes in.
“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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