1] Cало: A top entry in the competition would have to be Russian Sala, where fatty pork, replete with blood and jellied, wobbly, oozing gristle is lovingly served with delicious sauteed vegetables.
2] Tripe: It's a type of edible offal made from the stomach of various domestic animals. Beef tripe is typically made from the first three of a cow's four stomach chambers, the rumen (blanket/flat/smooth tripe), the reticulum (honeycomb and pocket tripe), and the omasum (book/bible/leaf tripe). Abomasum (reed) tripe is also seen, but with much less frequency, owing to its glandular tissue content.
3] Black Pudding: It's a sausage made by cooking blood with a filler until it is thick enough to congeal when cooled. Black pudding can be eaten uncooked but is often grilled or boiled in its skin.
4] Frog's legs: Only the upper joint of the hind leg is served, which has a single bone similar to the upper joint of a chicken or turkey wing. They are commonly prepared by frying or deep-frying, sometimes breaded and sometimes unbreaded.
5] Sheep's brains … I can't go on any longer.
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