Do not overcook the pudding or it will be tough.
Choose the bread you like: wholemeal, broche, Pannetone, French stick, etc.
Soak the sultanas in rum and add both to the dish.
For a chocolate version of the bread and butter pudding, add 25 gr cacao powder to the milk. Add some chopped bananas if you wish.
Add orange zest to the pudding or spread the bread with lemon curd for a fresher taste.
Add tinned or fresh fruit to the dish.