Pickled onion, steak & ale pudding

This pudding is a delicious beast, a gutsy hero. Were it a person it would, no doubt, be the local thick-wristed, silent giant who whops cricket balls from the village green to kingdom come. Be the first to boldly venture into the pudding: it is most satisfying to see the steam swirling up and saucy meats spilling forth, and you cannot but think: corrrr! Visit a good butcher for the meat. It should be well fatted and not like the supermarket lean braising steak that magically transforms int