A grand occasion dish, and a classic regional dish from my city, Treviso, near Venice. It is not elaborate, but it will take time and it requires the confidence of the more experienced cook. Sopa coada translates into something like ‘slow-cooked’, a bit like the way that birds incubate their eggs. Originally it was cooked very, very slowly in an earthenware dish in the oven. My version is a little more user-friendly.