Why it works: Ketchup and sauce 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 ↓
Ox Heart Roasted
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Wash and wipe the heart thoroughly.
Fill the heart with stuffing as for a fillet of veal.
Tie a piece of veal caul over the top.
Roast and finish
Roast gently for 1.5 hours.
Five minutes before it's done, increase the heat to 400°F (200°C).
Froth with flour and butter.
Serve on a very hot dish with a sauce made from cul'lis, fresh butter, ketchup, and red port boiled together.
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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Ketchup + saucetop 1% of all pairsSmell alikestrongCooked together1,099 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + ketchuptop 13% of all pairsSmell alikemoderateCooked together2,435 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Butter + saucetop 15% of all pairsSmell alikelowCooked together15,338 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Flour + saucetop 18% of all pairsSmell alikemoderateCooked together8,078 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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
- Ox heart
- Forms the main body of the dish, cooked whole and served sliced.
- Veal caul
- Wraps the heart to hold the stuffing in and keep the outside moist during roasting.
- Butter
- Froths over the heart and enriches the sauce, adding richness and a golden finish.
- Red port
- Adds sweetness and depth of flavour to the boiled sauce as it reduces.
- Ketchup
- Adds tangy sweetness and acidity to the sauce.
The step that matters
Increase the heat five minutes before it's done. A short blast of higher heat near the end browns the outside and sets the surface. Overcooking at high heat, though, dries the meat, so the timing needs care.
“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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