Why it works: Sauce and ketchup match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and 1,099 recipes mention both. Both carry ethanol, which smells alcoholic, ethereal. The science ↓
The recipe
Ingredients
Contains: milk, wheat (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Wash the tripe well in cold water.
Place the tripe in a stewpan and cover it with cold water.
Bring the stewpan to a boil to blanch the tripe.
Remove the tripe from the stewpan and dry it with a clean cloth.
Cut the tripe into strips about 2 inches wide and 4 inches long.
Slice the bacon into very thin pieces, matching the size of the tripe strips.
Chop the peeled shallot and parsley finely on a board.
Lay a slice of bacon on each strip of tripe, sprinkle with chopped shallot and parsley, roll them up, and tie with string.
Wash and scrape the carrot, then cut it into slices.
Peel and slice the half onion and the remaining shallots.
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 aroma chemistry they share, and how many recipes mention both.
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Sauce + ketchuptop 1% of all pairsAroma overlapstrongMentioned together1,099 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Carrot + parsleytop 1% of all pairsAroma overlapstrongMentioned together8,053 recipes
Shared aroma: myristicin (spice, warm).
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Mushroom + buttertop 3% of all pairsAroma overlapstrongMentioned together12,516 recipes
Shared aroma: trans-2-decenal (waxy, orange).
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Shallot + parsleytop 3% of all pairsAroma overlapmoderateMentioned together3,718 recipes
Shared aroma: coumarin (sweet, hay).
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Mushroom + shallottop 3% of all pairsAroma overlapmoderateMentioned together1,960 recipes
Shared aroma: 2-octenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
Flavor stand-ins for the onion
How well each one fits the dish's main ingredients (carrot, mushroom, shallot, parsley, butter, sauce, ketchup):
- Capsicumbetter flavor fit
- Chivebetter flavor fit
- Tomatoabout as good a flavor fit
- Onionthe original
Fit is the average pairing score against carrot, mushroom, shallot, parsley, butter, sauce, ketchup. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
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