To make thinner crumpets that don't need to be split, use only 1/3 cup batter for each, and bake for a total of sixteen minutes. If you don't have flan rings, use clean tuna cans with the tops and bottoms removed.
Steam your pudding in a deep pot with a tight-fitting lid so the steam has room to circulate. Keep a kettle of hot water on hand to refill the pot if necessary. Do not allow the pudding to cool much longer than 15 minutes, or you may have trouble removing it from the mold.